#ifdef BOOST_MSVC
#pragma warning(push)
-#pragma warning(disable:6326) // comparison of two constants
+#pragma warning(disable : 6326) // comparison of two constants
#endif
-namespace boost{
-namespace multiprecision{
-namespace backends{
+namespace boost {
+namespace multiprecision {
+namespace backends {
template <unsigned Digits10, class ExponentType = boost::int32_t, class Allocator = void>
class cpp_dec_float;
-} // namespace
+} // namespace backends
template <unsigned Digits10, class ExponentType, class Allocator>
-struct number_category<backends::cpp_dec_float<Digits10, ExponentType, Allocator> > : public mpl::int_<number_kind_floating_point>{};
+struct number_category<backends::cpp_dec_float<Digits10, ExponentType, Allocator> > : public mpl::int_<number_kind_floating_point>
+{};
-namespace backends{
+namespace backends {
template <unsigned Digits10, class ExponentType, class Allocator>
class cpp_dec_float
{
-private:
+ private:
static const boost::int32_t cpp_dec_float_digits10_setting = Digits10;
// We need at least 16-bits in the exponent type to do anything sensible:
BOOST_STATIC_ASSERT_MSG(boost::is_signed<ExponentType>::value, "ExponentType must be a signed built in integer type.");
BOOST_STATIC_ASSERT_MSG(sizeof(ExponentType) > 1, "ExponentType is too small.");
-public:
- typedef mpl::list<boost::long_long_type> signed_types;
+ public:
+ typedef mpl::list<boost::long_long_type> signed_types;
typedef mpl::list<boost::ulong_long_type> unsigned_types;
- typedef mpl::list<long double> float_types;
- typedef ExponentType exponent_type;
+ typedef mpl::list<long double> float_types;
+ typedef ExponentType exponent_type;
- static const boost::int32_t cpp_dec_float_radix = 10L;
+ static const boost::int32_t cpp_dec_float_radix = 10L;
static const boost::int32_t cpp_dec_float_digits10_limit_lo = 9L;
static const boost::int32_t cpp_dec_float_digits10_limit_hi = boost::integer_traits<boost::int32_t>::const_max - 100;
- static const boost::int32_t cpp_dec_float_digits10 = ((cpp_dec_float_digits10_setting < cpp_dec_float_digits10_limit_lo) ? cpp_dec_float_digits10_limit_lo : ((cpp_dec_float_digits10_setting > cpp_dec_float_digits10_limit_hi) ? cpp_dec_float_digits10_limit_hi : cpp_dec_float_digits10_setting));
- static const ExponentType cpp_dec_float_max_exp10 = (static_cast<ExponentType>(1) << (std::numeric_limits<ExponentType>::digits - 5));
- static const ExponentType cpp_dec_float_min_exp10 = -cpp_dec_float_max_exp10;
- static const ExponentType cpp_dec_float_max_exp = cpp_dec_float_max_exp10;
- static const ExponentType cpp_dec_float_min_exp = cpp_dec_float_min_exp10;
+ static const boost::int32_t cpp_dec_float_digits10 = ((cpp_dec_float_digits10_setting < cpp_dec_float_digits10_limit_lo) ? cpp_dec_float_digits10_limit_lo : ((cpp_dec_float_digits10_setting > cpp_dec_float_digits10_limit_hi) ? cpp_dec_float_digits10_limit_hi : cpp_dec_float_digits10_setting));
+ static const ExponentType cpp_dec_float_max_exp10 = (static_cast<ExponentType>(1) << (std::numeric_limits<ExponentType>::digits - 5));
+ static const ExponentType cpp_dec_float_min_exp10 = -cpp_dec_float_max_exp10;
+ static const ExponentType cpp_dec_float_max_exp = cpp_dec_float_max_exp10;
+ static const ExponentType cpp_dec_float_min_exp = cpp_dec_float_min_exp10;
BOOST_STATIC_ASSERT((cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_max_exp10 == -cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_min_exp10));
-private:
+ private:
static const boost::int32_t cpp_dec_float_elem_digits10 = 8L;
- static const boost::int32_t cpp_dec_float_elem_mask = 100000000L;
+ static const boost::int32_t cpp_dec_float_elem_mask = 100000000L;
BOOST_STATIC_ASSERT(0 == cpp_dec_float_max_exp10 % cpp_dec_float_elem_digits10);
// The number of elements needed (with a minimum of two) plus three added guard limbs.
static const boost::int32_t cpp_dec_float_elem_number = static_cast<boost::int32_t>(((cpp_dec_float_elem_number_request < 2L) ? 2L : cpp_dec_float_elem_number_request) + 3L);
-public:
+ public:
static const boost::int32_t cpp_dec_float_total_digits10 = static_cast<boost::int32_t>(cpp_dec_float_elem_number * cpp_dec_float_elem_digits10);
-private:
-
+ private:
typedef enum enum_fpclass_type
{
cpp_dec_float_finite,
cpp_dec_float_inf,
cpp_dec_float_NaN
- }
- fpclass_type;
+ } fpclass_type;
#ifndef BOOST_NO_CXX11_HDR_ARRAY
typedef typename mpl::if_<is_void<Allocator>,
- std::array<boost::uint32_t, cpp_dec_float_elem_number>,
- detail::dynamic_array<boost::uint32_t, cpp_dec_float_elem_number, Allocator>
- >::type array_type;
+ std::array<boost::uint32_t, cpp_dec_float_elem_number>,
+ detail::dynamic_array<boost::uint32_t, cpp_dec_float_elem_number, Allocator> >::type array_type;
#else
typedef typename mpl::if_<is_void<Allocator>,
- boost::array<boost::uint32_t, cpp_dec_float_elem_number>,
- detail::dynamic_array<boost::uint32_t, cpp_dec_float_elem_number, Allocator>
- >::type array_type;
+ boost::array<boost::uint32_t, cpp_dec_float_elem_number>,
+ detail::dynamic_array<boost::uint32_t, cpp_dec_float_elem_number, Allocator> >::type array_type;
#endif
- array_type data;
- ExponentType exp;
- bool neg;
- fpclass_type fpclass;
+ array_type data;
+ ExponentType exp;
+ bool neg;
+ fpclass_type fpclass;
boost::int32_t prec_elem;
//
// Special values constructor:
//
- cpp_dec_float(fpclass_type c) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (c),
- prec_elem(cpp_dec_float_elem_number) { }
+ cpp_dec_float(fpclass_type c) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(c),
+ prec_elem(cpp_dec_float_elem_number) {}
- //
- // Static data initializer:
- //
- struct initializer
+ //
+ // Static data initializer:
+ //
+ struct initializer
+ {
+ initializer()
{
- initializer()
- {
- cpp_dec_float<Digits10, ExponentType, Allocator>::nan();
- cpp_dec_float<Digits10, ExponentType, Allocator>::inf();
- (cpp_dec_float<Digits10, ExponentType, Allocator>::min)();
- (cpp_dec_float<Digits10, ExponentType, Allocator>::max)();
- cpp_dec_float<Digits10, ExponentType, Allocator>::zero();
- cpp_dec_float<Digits10, ExponentType, Allocator>::one();
- cpp_dec_float<Digits10, ExponentType, Allocator>::two();
- cpp_dec_float<Digits10, ExponentType, Allocator>::half();
- cpp_dec_float<Digits10, ExponentType, Allocator>::double_min();
- cpp_dec_float<Digits10, ExponentType, Allocator>::double_max();
- cpp_dec_float<Digits10, ExponentType, Allocator>::long_double_max();
- cpp_dec_float<Digits10, ExponentType, Allocator>::long_double_min();
- cpp_dec_float<Digits10, ExponentType, Allocator>::long_long_max();
- cpp_dec_float<Digits10, ExponentType, Allocator>::long_long_min();
- cpp_dec_float<Digits10, ExponentType, Allocator>::ulong_long_max();
- cpp_dec_float<Digits10, ExponentType, Allocator>::eps();
- cpp_dec_float<Digits10, ExponentType, Allocator>::pow2(0);
- }
- void do_nothing(){}
- };
+ cpp_dec_float<Digits10, ExponentType, Allocator>::nan();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::inf();
+ (cpp_dec_float<Digits10, ExponentType, Allocator>::min)();
+ (cpp_dec_float<Digits10, ExponentType, Allocator>::max)();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::zero();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::one();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::two();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::half();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::double_min();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::double_max();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::long_double_max();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::long_double_min();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::long_long_max();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::long_long_min();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::ulong_long_max();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::eps();
+ cpp_dec_float<Digits10, ExponentType, Allocator>::pow2(0);
+ }
+ void do_nothing() {}
+ };
- static initializer init;
+ static initializer init;
-public:
+ public:
// Constructors
- cpp_dec_float() BOOST_MP_NOEXCEPT_IF(noexcept(array_type())) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number) { }
-
- cpp_dec_float(const char* s) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number)
- {
- *this = s;
- }
+ cpp_dec_float() BOOST_MP_NOEXCEPT_IF(noexcept(array_type())) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number) {}
- template<class I>
- cpp_dec_float(I i, typename enable_if<is_unsigned<I> >::type* = 0) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number)
- {
- from_unsigned_long_long(i);
- }
+ cpp_dec_float(const char* s) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number)
+ {
+ *this = s;
+ }
template <class I>
- cpp_dec_float(I i, typename enable_if<is_signed<I> >::type* = 0) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number)
+ cpp_dec_float(I i, typename enable_if<is_unsigned<I> >::type* = 0) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number)
+ {
+ from_unsigned_long_long(i);
+ }
+
+ template <class I>
+ cpp_dec_float(I i, typename enable_if<is_signed<I> >::type* = 0) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number)
+ {
+ if (i < 0)
{
- if(i < 0)
- {
- from_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(i));
- negate();
- }
- else
- from_unsigned_long_long(i);
+ from_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(i));
+ negate();
}
+ else
+ from_unsigned_long_long(i);
+ }
- cpp_dec_float(const cpp_dec_float& f) BOOST_MP_NOEXCEPT_IF(noexcept(array_type(std::declval<const array_type&>()))) :
- data (f.data),
- exp (f.exp),
- neg (f.neg),
- fpclass (f.fpclass),
- prec_elem(f.prec_elem) { }
+ cpp_dec_float(const cpp_dec_float& f) BOOST_MP_NOEXCEPT_IF(noexcept(array_type(std::declval<const array_type&>()))) : data(f.data),
+ exp(f.exp),
+ neg(f.neg),
+ fpclass(f.fpclass),
+ prec_elem(f.prec_elem) {}
template <unsigned D, class ET, class A>
- cpp_dec_float(const cpp_dec_float<D, ET, A>& f, typename enable_if_c<D <= Digits10>::type* = 0) :
- data(),
- exp (f.exp),
- neg (f.neg),
- fpclass (static_cast<fpclass_type>(static_cast<int>(f.fpclass))),
- prec_elem(cpp_dec_float_elem_number)
+ cpp_dec_float(const cpp_dec_float<D, ET, A>& f, typename enable_if_c<D <= Digits10>::type* = 0) : data(),
+ exp(f.exp),
+ neg(f.neg),
+ fpclass(static_cast<fpclass_type>(static_cast<int>(f.fpclass))),
+ prec_elem(cpp_dec_float_elem_number)
{
std::copy(f.data.begin(), f.data.begin() + f.prec_elem, data.begin());
}
template <unsigned D, class ET, class A>
- explicit cpp_dec_float(const cpp_dec_float<D, ET, A>& f, typename disable_if_c<D <= Digits10>::type* = 0) :
- data(),
- exp (f.exp),
- neg (f.neg),
- fpclass (static_cast<fpclass_type>(static_cast<int>(f.fpclass))),
- prec_elem(cpp_dec_float_elem_number)
+ explicit cpp_dec_float(const cpp_dec_float<D, ET, A>& f, typename disable_if_c<D <= Digits10>::type* = 0) : data(),
+ exp(f.exp),
+ neg(f.neg),
+ fpclass(static_cast<fpclass_type>(static_cast<int>(f.fpclass))),
+ prec_elem(cpp_dec_float_elem_number)
{
// TODO: this doesn't round!
std::copy(f.data.begin(), f.data.begin() + prec_elem, data.begin());
template <class F>
cpp_dec_float(const F val, typename enable_if_c<is_floating_point<F>::value
#ifdef BOOST_HAS_FLOAT128
- && !boost::is_same<F, __float128>::value
+ && !boost::is_same<F, __float128>::value
#endif
- >::type* = 0) :
- data(),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number)
+ >::type* = 0) : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number)
{
*this = val;
}
cpp_dec_float(const double mantissa, const ExponentType exponent);
- std::size_t hash()const
+ std::size_t hash() const
{
std::size_t result = 0;
- for(int i = 0; i < prec_elem; ++i)
+ for (int i = 0; i < prec_elem; ++i)
boost::hash_combine(result, data[i]);
boost::hash_combine(result, exp);
boost::hash_combine(result, neg);
return val;
}
- static const cpp_dec_float& (max)()
+ static const cpp_dec_float&(max)()
{
init.do_nothing();
static cpp_dec_float val_max = std::string("1.0e" + boost::lexical_cast<std::string>(cpp_dec_float_max_exp10)).c_str();
return val_max;
}
- static const cpp_dec_float& (min)()
+ static const cpp_dec_float&(min)()
{
init.do_nothing();
static cpp_dec_float val_min = std::string("1.0e" + boost::lexical_cast<std::string>(cpp_dec_float_min_exp10)).c_str();
// Basic operations.
cpp_dec_float& operator=(const cpp_dec_float& v) BOOST_MP_NOEXCEPT_IF(noexcept(std::declval<array_type&>() = std::declval<const array_type&>()))
{
- data = v.data;
- exp = v.exp;
- neg = v.neg;
- fpclass = v.fpclass;
+ data = v.data;
+ exp = v.exp;
+ neg = v.neg;
+ fpclass = v.fpclass;
prec_elem = v.prec_elem;
return *this;
}
template <unsigned D>
cpp_dec_float& operator=(const cpp_dec_float<D>& f)
{
- exp = f.exp;
- neg = f.neg;
- fpclass = static_cast<enum_fpclass_type>(static_cast<int>(f.fpclass));
+ exp = f.exp;
+ neg = f.neg;
+ fpclass = static_cast<enum_fpclass_type>(static_cast<int>(f.fpclass));
unsigned elems = (std::min)(f.prec_elem, cpp_dec_float_elem_number);
std::copy(f.data.begin(), f.data.begin() + elems, data.begin());
std::fill(data.begin() + elems, data.end(), 0);
cpp_dec_float& operator=(boost::long_long_type v)
{
- if(v < 0)
+ if (v < 0)
{
from_unsigned_long_long(1u - boost::ulong_long_type(v + 1)); // Avoid undefined behaviour in negation of minimum value for long long
negate();
cpp_dec_float& div_unsigned_long_long(const boost::ulong_long_type n);
// Elementary primitives.
- cpp_dec_float& calculate_inv ();
+ cpp_dec_float& calculate_inv();
cpp_dec_float& calculate_sqrt();
void negate()
{
- if(!iszero())
+ if (!iszero())
neg = !neg;
}
// Comparison functions
- bool isnan BOOST_PREVENT_MACRO_SUBSTITUTION() const { return (fpclass == cpp_dec_float_NaN); }
- bool isinf BOOST_PREVENT_MACRO_SUBSTITUTION() const { return (fpclass == cpp_dec_float_inf); }
+ bool isnan BOOST_PREVENT_MACRO_SUBSTITUTION() const { return (fpclass == cpp_dec_float_NaN); }
+ bool isinf BOOST_PREVENT_MACRO_SUBSTITUTION() const { return (fpclass == cpp_dec_float_inf); }
bool isfinite BOOST_PREVENT_MACRO_SUBSTITUTION() const { return (fpclass == cpp_dec_float_finite); }
- bool iszero () const
+ bool iszero() const
{
return ((fpclass == cpp_dec_float_finite) && (data[0u] == 0u));
}
- bool isone () const;
- bool isint () const;
- bool isneg () const { return neg; }
+ bool isone() const;
+ bool isint() const;
+ bool isneg() const { return neg; }
// Operators pre-increment and pre-decrement
cpp_dec_float& operator++()
return *this -= one();
}
- std::string str(boost::intmax_t digits, std::ios_base::fmtflags f)const;
+ std::string str(boost::intmax_t digits, std::ios_base::fmtflags f) const;
- int compare(const cpp_dec_float& v)const;
+ int compare(const cpp_dec_float& v) const;
template <class V>
- int compare(const V& v)const
+ int compare(const V& v) const
{
cpp_dec_float<Digits10, ExponentType, Allocator> t;
t = v;
std::swap(prec_elem, v.prec_elem);
}
- double extract_double() const;
- long double extract_long_double() const;
- boost::long_long_type extract_signed_long_long() const;
+ double extract_double() const;
+ long double extract_long_double() const;
+ boost::long_long_type extract_signed_long_long() const;
boost::ulong_long_type extract_unsigned_long_long() const;
- void extract_parts(double& mantissa, ExponentType& exponent) const;
- cpp_dec_float extract_integer_part() const;
+ void extract_parts(double& mantissa, ExponentType& exponent) const;
+ cpp_dec_float extract_integer_part() const;
void precision(const boost::int32_t prec_digits)
{
- if(prec_digits >= cpp_dec_float_total_digits10)
+ if (prec_digits >= cpp_dec_float_total_digits10)
{
prec_elem = cpp_dec_float_elem_number;
}
else
{
- const boost::int32_t elems = static_cast<boost::int32_t>( static_cast<boost::int32_t>( (prec_digits + (cpp_dec_float_elem_digits10 / 2)) / cpp_dec_float_elem_digits10)
- + static_cast<boost::int32_t>(((prec_digits % cpp_dec_float_elem_digits10) != 0) ? 1 : 0));
+ const boost::int32_t elems = static_cast<boost::int32_t>(static_cast<boost::int32_t>((prec_digits + (cpp_dec_float_elem_digits10 / 2)) / cpp_dec_float_elem_digits10) + static_cast<boost::int32_t>(((prec_digits % cpp_dec_float_elem_digits10) != 0) ? 1 : 0));
prec_elem = (std::min)(cpp_dec_float_elem_number, (std::max)(elems, static_cast<boost::int32_t>(2)));
}
}
static cpp_dec_float pow2(boost::long_long_type i);
- ExponentType order()const
+ ExponentType order() const
{
const bool bo_order_is_zero = ((!(isfinite)()) || (data[0] == static_cast<boost::uint32_t>(0u)));
//
//
ExponentType prefix = 0;
- if(data[0] >= 100000UL)
+ if (data[0] >= 100000UL)
{
- if(data[0] >= 10000000UL)
+ if (data[0] >= 10000000UL)
{
- if(data[0] >= 100000000UL)
+ if (data[0] >= 100000000UL)
{
- if(data[0] >= 1000000000UL)
+ if (data[0] >= 1000000000UL)
prefix = 9;
else
prefix = 8;
}
else
{
- if(data[0] >= 1000000UL)
+ if (data[0] >= 1000000UL)
prefix = 6;
else
prefix = 5;
}
else
{
- if(data[0] >= 1000UL)
+ if (data[0] >= 1000UL)
{
- if(data[0] >= 10000UL)
+ if (data[0] >= 10000UL)
prefix = 4;
else
prefix = 3;
}
else
{
- if(data[0] >= 100)
+ if (data[0] >= 100)
prefix = 2;
- else if(data[0] >= 10)
+ else if (data[0] >= 10)
prefix = 1;
}
}
return (bo_order_is_zero ? static_cast<ExponentType>(0) : static_cast<ExponentType>(exp + prefix));
}
- template<class Archive>
- void serialize(Archive & ar, const unsigned int /*version*/)
+ template <class Archive>
+ void serialize(Archive& ar, const unsigned int /*version*/)
{
- for(unsigned i = 0; i < data.size(); ++i)
- ar & boost::serialization::make_nvp("digit", data[i]);
- ar & boost::serialization::make_nvp("exponent", exp);
- ar & boost::serialization::make_nvp("sign", neg);
- ar & boost::serialization::make_nvp("class-type", fpclass);
- ar & boost::serialization::make_nvp("precision", prec_elem);
+ for (unsigned i = 0; i < data.size(); ++i)
+ ar& boost::make_nvp("digit", data[i]);
+ ar& boost::make_nvp("exponent", exp);
+ ar& boost::make_nvp("sign", neg);
+ ar& boost::make_nvp("class-type", fpclass);
+ ar& boost::make_nvp("precision", prec_elem);
}
-private:
+ private:
static bool data_elem_is_non_zero_predicate(const boost::uint32_t& d) { return (d != static_cast<boost::uint32_t>(0u)); }
static bool data_elem_is_non_nine_predicate(const boost::uint32_t& d) { return (d != static_cast<boost::uint32_t>(cpp_dec_float::cpp_dec_float_elem_mask - 1)); }
static bool char_is_nonzero_predicate(const char& c) { return (c != static_cast<char>('0')); }
int cmp_data(const array_type& vd) const;
-
static boost::uint32_t mul_loop_uv(boost::uint32_t* const u, const boost::uint32_t* const v, const boost::int32_t p);
- static boost::uint32_t mul_loop_n (boost::uint32_t* const u, boost::uint32_t n, const boost::int32_t p);
- static boost::uint32_t div_loop_n (boost::uint32_t* const u, boost::uint32_t n, const boost::int32_t p);
+ static boost::uint32_t mul_loop_n(boost::uint32_t* const u, boost::uint32_t n, const boost::int32_t p);
+ static boost::uint32_t div_loop_n(boost::uint32_t* const u, boost::uint32_t n, const boost::int32_t p);
bool rd_string(const char* const s);
template <unsigned Digits10, class ExponentType, class Allocator>
cpp_dec_float<Digits10, ExponentType, Allocator>& cpp_dec_float<Digits10, ExponentType, Allocator>::operator+=(const cpp_dec_float<Digits10, ExponentType, Allocator>& v)
{
- if((isnan)())
+ if ((isnan)())
{
return *this;
}
- if((isinf)())
+ if ((isinf)())
{
- if((v.isinf)() && (isneg() != v.isneg()))
+ if ((v.isinf)() && (isneg() != v.isneg()))
{
*this = nan();
}
return *this;
}
- if(iszero())
+ if (iszero())
{
return operator=(v);
}
- if((v.isnan)() || (v.isinf)())
+ if ((v.isnan)() || (v.isinf)())
{
*this = v;
return *this;
const ExponentType ofs_exp = static_cast<ExponentType>(exp - v.exp);
// Check if the operation is out of range, requiring special handling.
- if(v.iszero() || (ofs_exp > max_delta_exp))
+ if (v.iszero() || (ofs_exp > max_delta_exp))
{
// Result is *this unchanged since v is negligible compared to *this.
return *this;
}
- else if(ofs_exp < -max_delta_exp)
+ else if (ofs_exp < -max_delta_exp)
{
// Result is *this = v since *this is negligible compared to v.
return operator=(v);
// Do the add/sub operation.
- typename array_type::iterator p_u = data.begin();
- typename array_type::const_iterator p_v = v.data.begin();
- bool b_copy = false;
- const boost::int32_t ofs = static_cast<boost::int32_t>(static_cast<boost::int32_t>(ofs_exp) / cpp_dec_float_elem_digits10);
- array_type n_data;
+ typename array_type::iterator p_u = data.begin();
+ typename array_type::const_iterator p_v = v.data.begin();
+ bool b_copy = false;
+ const boost::int32_t ofs = static_cast<boost::int32_t>(static_cast<boost::int32_t>(ofs_exp) / cpp_dec_float_elem_digits10);
+ array_type n_data;
- if(neg == v.neg)
+ if (neg == v.neg)
{
// Add v to *this, where the data array of either *this or v
// might have to be treated with a positive, negative or zero offset.
// The result is stored in *this. The data are added one element
// at a time, each element with carry.
- if(ofs >= static_cast<boost::int32_t>(0))
+ if (ofs >= static_cast<boost::int32_t>(0))
{
std::copy(v.data.begin(), v.data.end() - static_cast<size_t>(ofs), n_data.begin() + static_cast<size_t>(ofs));
std::fill(n_data.begin(), n_data.begin() + static_cast<size_t>(ofs), static_cast<boost::uint32_t>(0u));
{
std::copy(data.begin(), data.end() - static_cast<size_t>(-ofs), n_data.begin() + static_cast<size_t>(-ofs));
std::fill(n_data.begin(), n_data.begin() + static_cast<size_t>(-ofs), static_cast<boost::uint32_t>(0u));
- p_u = n_data.begin();
+ p_u = n_data.begin();
b_copy = true;
}
// Addition algorithm
boost::uint32_t carry = static_cast<boost::uint32_t>(0u);
- for(boost::int32_t j = static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)); j >= static_cast<boost::int32_t>(0); j--)
+ for (boost::int32_t j = static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)); j >= static_cast<boost::int32_t>(0); j--)
{
boost::uint32_t t = static_cast<boost::uint32_t>(static_cast<boost::uint32_t>(p_u[j] + p_v[j]) + carry);
- carry = t / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask);
- p_u[j] = static_cast<boost::uint32_t>(t - static_cast<boost::uint32_t>(carry * static_cast<boost::uint32_t>(cpp_dec_float_elem_mask)));
+ carry = t / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask);
+ p_u[j] = static_cast<boost::uint32_t>(t - static_cast<boost::uint32_t>(carry * static_cast<boost::uint32_t>(cpp_dec_float_elem_mask)));
}
- if(b_copy)
+ if (b_copy)
{
data = n_data;
- exp = v.exp;
+ exp = v.exp;
}
// There needs to be a carry into the element -1 of the array data
- if(carry != static_cast<boost::uint32_t>(0u))
+ if (carry != static_cast<boost::uint32_t>(0u))
{
std::copy_backward(data.begin(), data.end() - static_cast<std::size_t>(1u), data.end());
data[0] = carry;
{
// Subtract v from *this, where the data array of either *this or v
// might have to be treated with a positive, negative or zero offset.
- if((ofs > static_cast<boost::int32_t>(0))
- || ( (ofs == static_cast<boost::int32_t>(0))
- && (cmp_data(v.data) > static_cast<boost::int32_t>(0)))
- )
+ if ((ofs > static_cast<boost::int32_t>(0)) || ((ofs == static_cast<boost::int32_t>(0)) && (cmp_data(v.data) > static_cast<boost::int32_t>(0))))
{
// In this case, |u| > |v| and ofs is positive.
// Copy the data of v, shifted down to a lower value
}
else
{
- if(ofs != static_cast<boost::int32_t>(0))
+ if (ofs != static_cast<boost::int32_t>(0))
{
// In this case, |u| < |v| and ofs is negative.
// Shift the data of u down to a lower value.
// operand pointer p_v to point to the shifted
// data m_data.
n_data = v.data;
- p_u = n_data.begin();
- p_v = data.begin();
+ p_u = n_data.begin();
+ p_v = data.begin();
b_copy = true;
}
// Subtraction algorithm
boost::int32_t borrow = static_cast<boost::int32_t>(0);
- for(j = static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)); j >= static_cast<boost::int32_t>(0); j--)
+ for (j = static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)); j >= static_cast<boost::int32_t>(0); j--)
{
- boost::int32_t t = static_cast<boost::int32_t>(static_cast<boost::int32_t>( static_cast<boost::int32_t>(p_u[j])
- - static_cast<boost::int32_t>(p_v[j])) - borrow);
+ boost::int32_t t = static_cast<boost::int32_t>(static_cast<boost::int32_t>(static_cast<boost::int32_t>(p_u[j]) - static_cast<boost::int32_t>(p_v[j])) - borrow);
// Underflow? Borrow?
- if(t < static_cast<boost::int32_t>(0))
+ if (t < static_cast<boost::int32_t>(0))
{
// Yes, underflow and borrow
t += static_cast<boost::int32_t>(cpp_dec_float_elem_mask);
p_u[j] = static_cast<boost::uint32_t>(static_cast<boost::uint32_t>(t) % static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
}
- if(b_copy)
+ if (b_copy)
{
data = n_data;
- exp = v.exp;
- neg = v.neg;
+ exp = v.exp;
+ neg = v.neg;
}
// Is it necessary to justify the data?
const typename array_type::const_iterator first_nonzero_elem = std::find_if(data.begin(), data.end(), data_elem_is_non_zero_predicate);
- if(first_nonzero_elem != data.begin())
+ if (first_nonzero_elem != data.begin())
{
- if(first_nonzero_elem == data.end())
+ if (first_nonzero_elem == data.end())
{
// This result of the subtraction is exactly zero.
// Reset the sign and the exponent.
}
// Handle underflow.
- if(iszero())
+ if (iszero())
return (*this = zero());
// Check for potential overflow.
- const bool b_result_might_overflow = (exp >= static_cast<ExponentType>(cpp_dec_float_max_exp10));
+ const bool b_result_might_overflow = (exp >= static_cast<ExponentType>(cpp_dec_float_max_exp10));
// Handle overflow.
- if(b_result_might_overflow)
+ if (b_result_might_overflow)
{
const bool b_result_is_neg = neg;
- neg = false;
+ neg = false;
- if(compare((cpp_dec_float::max)()) > 0)
- *this = inf();
+ if (compare((cpp_dec_float::max)()) > 0)
+ *this = inf();
neg = b_result_is_neg;
}
const bool b_u_is_zero = iszero();
const bool b_v_is_zero = v.iszero();
- if( ((isnan)() || (v.isnan)())
- || (b_u_is_inf && b_v_is_zero)
- || (b_v_is_inf && b_u_is_zero)
- )
+ if (((isnan)() || (v.isnan)()) || (b_u_is_inf && b_v_is_zero) || (b_v_is_inf && b_u_is_zero))
{
*this = nan();
return *this;
}
- if(b_u_is_inf || b_v_is_inf)
+ if (b_u_is_inf || b_v_is_inf)
{
*this = inf();
- if(b_result_is_neg)
+ if (b_result_is_neg)
negate();
return *this;
}
- if(b_u_is_zero || b_v_is_zero)
+ if (b_u_is_zero || b_v_is_zero)
{
return *this = zero();
}
const boost::uint32_t carry = mul_loop_uv(data.data(), v.data.data(), prec_mul);
// Handle a potential carry.
- if(carry != static_cast<boost::uint32_t>(0u))
+ if (carry != static_cast<boost::uint32_t>(0u))
{
exp += cpp_dec_float_elem_digits10;
}
// Handle overflow.
- if(b_result_might_overflow && (compare((cpp_dec_float::max)()) > 0))
+ if (b_result_might_overflow && (compare((cpp_dec_float::max)()) > 0))
{
*this = inf();
}
// Handle underflow.
- if(b_result_might_underflow && (compare((cpp_dec_float::min)()) < 0))
+ if (b_result_might_underflow && (compare((cpp_dec_float::min)()) < 0))
{
*this = zero();
template <unsigned Digits10, class ExponentType, class Allocator>
cpp_dec_float<Digits10, ExponentType, Allocator>& cpp_dec_float<Digits10, ExponentType, Allocator>::operator/=(const cpp_dec_float<Digits10, ExponentType, Allocator>& v)
{
- if(iszero())
+ if (iszero())
{
- if((v.isnan)())
+ if ((v.isnan)())
{
return *this = v;
}
- else if(v.iszero())
+ else if (v.iszero())
{
return *this = nan();
}
}
- const bool u_and_v_are_finite_and_identical = ( (isfinite)()
- && (fpclass == v.fpclass)
- && (exp == v.exp)
- && (cmp_data(v.data) == static_cast<boost::int32_t>(0)));
+ const bool u_and_v_are_finite_and_identical = ((isfinite)() && (fpclass == v.fpclass) && (exp == v.exp) && (cmp_data(v.data) == static_cast<boost::int32_t>(0)));
- if(u_and_v_are_finite_and_identical)
+ if (u_and_v_are_finite_and_identical)
{
- if(neg != v.neg)
+ if (neg != v.neg)
{
*this = one();
negate();
neg = false;
// Handle special cases like zero, inf and NaN.
- const bool b_u_is_inf = (isinf)();
+ const bool b_u_is_inf = (isinf)();
const bool b_n_is_zero = (n == static_cast<boost::int32_t>(0));
- if((isnan)() || (b_u_is_inf && b_n_is_zero))
+ if ((isnan)() || (b_u_is_inf && b_n_is_zero))
{
return (*this = nan());
}
- if(b_u_is_inf)
+ if (b_u_is_inf)
{
*this = inf();
- if(b_neg)
+ if (b_neg)
negate();
return *this;
}
- if(iszero() || b_n_is_zero)
+ if (iszero() || b_n_is_zero)
{
// Multiplication by zero.
return *this = zero();
}
- if(n >= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask))
+ if (n >= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask))
{
neg = b_neg;
cpp_dec_float t;
return operator*=(t);
}
- if(n == static_cast<boost::ulong_long_type>(1u))
+ if (n == static_cast<boost::ulong_long_type>(1u))
{
neg = b_neg;
return *this;
}
// Set up the multiplication loop.
- const boost::uint32_t nn = static_cast<boost::uint32_t>(n);
+ const boost::uint32_t nn = static_cast<boost::uint32_t>(n);
const boost::uint32_t carry = mul_loop_n(data.data(), nn, prec_elem);
// Handle the carry and adjust the exponent.
- if(carry != static_cast<boost::uint32_t>(0u))
+ if (carry != static_cast<boost::uint32_t>(0u))
{
exp += static_cast<ExponentType>(cpp_dec_float_elem_digits10);
// Shift the result of the multiplication one element to the right.
std::copy_backward(data.begin(),
- data.begin() + static_cast<std::size_t>(prec_elem - static_cast<boost::int32_t>(1)),
- data.begin() + static_cast<std::size_t>(prec_elem));
+ data.begin() + static_cast<std::size_t>(prec_elem - static_cast<boost::int32_t>(1)),
+ data.begin() + static_cast<std::size_t>(prec_elem));
data.front() = static_cast<boost::uint32_t>(carry);
}
const bool b_result_might_overflow = (exp >= cpp_dec_float_max_exp10);
// Handle overflow.
- if(b_result_might_overflow && (compare((cpp_dec_float::max)()) > 0))
+ if (b_result_might_overflow && (compare((cpp_dec_float::max)()) > 0))
{
*this = inf();
}
neg = false;
// Handle special cases like zero, inf and NaN.
- if((isnan)())
+ if ((isnan)())
{
return *this;
}
- if((isinf)())
+ if ((isinf)())
{
*this = inf();
- if(b_neg)
+ if (b_neg)
negate();
return *this;
}
- if(n == static_cast<boost::ulong_long_type>(0u))
+ if (n == static_cast<boost::ulong_long_type>(0u))
{
// Divide by 0.
- if(iszero())
+ if (iszero())
{
*this = nan();
return *this;
else
{
*this = inf();
- if(isneg())
+ if (isneg())
negate();
return *this;
}
}
- if(iszero())
+ if (iszero())
{
return *this;
}
- if(n >= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask))
+ if (n >= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask))
{
neg = b_neg;
cpp_dec_float t;
const boost::uint32_t nn = static_cast<boost::uint32_t>(n);
- if(nn > static_cast<boost::uint32_t>(1u))
+ if (nn > static_cast<boost::uint32_t>(1u))
{
// Do the division loop.
const boost::uint32_t prev = div_loop_n(data.data(), nn, prec_elem);
// Determine if one leading zero is in the result data.
- if(data[0] == static_cast<boost::uint32_t>(0u))
+ if (data[0] == static_cast<boost::uint32_t>(0u))
{
// Adjust the exponent
exp -= static_cast<ExponentType>(cpp_dec_float_elem_digits10);
// Shift result of the division one element to the left.
std::copy(data.begin() + static_cast<std::size_t>(1u),
- data.begin() + static_cast<std::size_t>(prec_elem - static_cast<boost::int32_t>(1)),
- data.begin());
+ data.begin() + static_cast<std::size_t>(prec_elem - static_cast<boost::int32_t>(1)),
+ data.begin());
data[prec_elem - static_cast<boost::int32_t>(1)] = static_cast<boost::uint32_t>(static_cast<boost::uint64_t>(prev * static_cast<boost::uint64_t>(cpp_dec_float_elem_mask)) / nn);
}
const bool b_result_might_underflow = (exp <= cpp_dec_float_min_exp10);
// Handle underflow.
- if(b_result_might_underflow && (compare((cpp_dec_float::min)()) < 0))
+ if (b_result_might_underflow && (compare((cpp_dec_float::min)()) < 0))
return (*this = zero());
// Set the sign of the result.
neg = false;
// Handle special cases like zero, inf and NaN.
- if(iszero())
+ if (iszero())
{
*this = inf();
- if(b_neg)
+ if (b_neg)
negate();
return *this;
}
- if((isnan)())
+ if ((isnan)())
{
return *this;
}
- if((isinf)())
+ if ((isinf)())
{
return *this = zero();
}
- if(isone())
+ if (isone())
{
- if(b_neg)
+ if (b_neg)
negate();
return *this;
}
// Generate the initial estimate using division.
// Extract the mantissa and exponent for a "manual"
// computation of the estimate.
- double dd;
+ double dd;
ExponentType ne;
x.extract_parts(dd, ne);
static const boost::int32_t double_digits10_minus_a_few = std::numeric_limits<double>::digits10 - 3;
- for(boost::int32_t digits = double_digits10_minus_a_few; digits <= cpp_dec_float_total_digits10; digits *= static_cast<boost::int32_t>(2))
+ for (boost::int32_t digits = double_digits10_minus_a_few; digits <= cpp_dec_float_total_digits10; digits *= static_cast<boost::int32_t>(2))
{
// Adjust precision of the terms.
precision(static_cast<boost::int32_t>((digits + 10) * static_cast<boost::int32_t>(2)));
{
// Compute the square root of *this.
- if((isinf)() && !isneg())
+ if ((isinf)() && !isneg())
{
return *this;
}
- if(isneg() || (!(isfinite)()))
+ if (isneg() || (!(isfinite)()))
{
*this = nan();
errno = EDOM;
return *this;
}
- if(iszero() || isone())
+ if (iszero() || isone())
{
return *this;
}
// Generate the initial estimate using division.
// Extract the mantissa and exponent for a "manual"
// computation of the estimate.
- double dd;
+ double dd;
ExponentType ne;
extract_parts(dd, ne);
// Force the exponent to be an even multiple of two.
- if((ne % static_cast<ExponentType>(2)) != static_cast<ExponentType>(0))
+ if ((ne % static_cast<ExponentType>(2)) != static_cast<ExponentType>(0))
{
++ne;
dd /= 10.0;
static const boost::uint32_t double_digits10_minus_a_few = std::numeric_limits<double>::digits10 - 3;
- for(boost::int32_t digits = double_digits10_minus_a_few; digits <= cpp_dec_float_total_digits10; digits *= 2u)
+ for (boost::int32_t digits = double_digits10_minus_a_few; digits <= cpp_dec_float_total_digits10; digits *= 2u)
{
// Adjust precision of the terms.
precision((digits + 10) * 2);
const bool is_equal = ((mismatch_pair.first == data.end()) && (mismatch_pair.second == vd.end()));
- if(is_equal)
+ if (is_equal)
{
return 0;
}
// -1 for *this < v
// Handle all non-finite cases.
- if((!(isfinite)()) || (!(v.isfinite)()))
+ if ((!(isfinite)()) || (!(v.isfinite)()))
{
// NaN can never equal NaN. Return an implementation-dependent
// signed result. Also note that comparison of NaN with NaN
// using operators greater-than or less-than is undefined.
- if((isnan)() || (v.isnan)()) { return ((isnan)() ? 1 : -1); }
+ if ((isnan)() || (v.isnan)())
+ {
+ return ((isnan)() ? 1 : -1);
+ }
- if((isinf)() && (v.isinf)())
+ if ((isinf)() && (v.isinf)())
{
// Both *this and v are infinite. They are equal if they have the same sign.
// Otherwise, *this is less than v if and only if *this is negative.
return ((neg == v.neg) ? 0 : (neg ? -1 : 1));
}
- if((isinf)())
+ if ((isinf)())
{
// *this is infinite, but v is finite.
// So negative infinite *this is less than any finite v.
}
// And now handle all *finite* cases.
- if(iszero())
+ if (iszero())
{
// The value of *this is zero and v is either zero or non-zero.
return (v.iszero() ? 0
- : (v.neg ? 1 : -1));
+ : (v.neg ? 1 : -1));
}
- else if(v.iszero())
+ else if (v.iszero())
{
// The value of v is zero and *this is non-zero.
return (neg ? -1 : 1);
{
// Both *this and v are non-zero.
- if(neg != v.neg)
+ if (neg != v.neg)
{
// The signs are different.
return (neg ? -1 : 1);
}
- else if(exp != v.exp)
+ else if (exp != v.exp)
{
// The signs are the same and the exponents are different.
const int val_cexpression = ((exp < v.exp) ? 1 : -1);
const bool not_negative_and_is_finite = ((!neg) && (isfinite)());
- if(not_negative_and_is_finite)
+ if (not_negative_and_is_finite)
{
- if((data[0u] == static_cast<boost::uint32_t>(1u)) && (exp == static_cast<ExponentType>(0)))
+ if ((data[0u] == static_cast<boost::uint32_t>(1u)) && (exp == static_cast<ExponentType>(0)))
{
const typename array_type::const_iterator it_non_zero = std::find_if(data.begin(), data.end(), data_elem_is_non_zero_predicate);
return (it_non_zero == data.end());
}
- else if((data[0u] == static_cast<boost::uint32_t>(cpp_dec_float_elem_mask - 1)) && (exp == static_cast<ExponentType>(-cpp_dec_float_elem_digits10)))
+ else if ((data[0u] == static_cast<boost::uint32_t>(cpp_dec_float_elem_mask - 1)) && (exp == static_cast<ExponentType>(-cpp_dec_float_elem_digits10)))
{
const typename array_type::const_iterator it_non_nine = std::find_if(data.begin(), data.end(), data_elem_is_non_nine_predicate);
return (it_non_nine == data.end());
template <unsigned Digits10, class ExponentType, class Allocator>
bool cpp_dec_float<Digits10, ExponentType, Allocator>::isint() const
{
- if(fpclass != cpp_dec_float_finite) { return false; }
+ if (fpclass != cpp_dec_float_finite)
+ {
+ return false;
+ }
- if(iszero()) { return true; }
+ if (iszero())
+ {
+ return true;
+ }
- if(exp < static_cast<ExponentType>(0)) { return false; } // |*this| < 1.
+ if (exp < static_cast<ExponentType>(0))
+ {
+ return false;
+ } // |*this| < 1.
const typename array_type::size_type offset_decimal_part = static_cast<typename array_type::size_type>(exp / cpp_dec_float_elem_digits10) + 1u;
- if(offset_decimal_part >= static_cast<typename array_type::size_type>(cpp_dec_float_elem_number))
+ if (offset_decimal_part >= static_cast<typename array_type::size_type>(cpp_dec_float_elem_number))
{
// The number is too large to resolve the integer part.
// It considered to be a pure integer.
// Extracts the mantissa and exponent.
exponent = exp;
- boost::uint32_t p10 = static_cast<boost::uint32_t>(1u);
+ boost::uint32_t p10 = static_cast<boost::uint32_t>(1u);
boost::uint32_t test = data[0u];
- for(;;)
+ for (;;)
{
test /= static_cast<boost::uint32_t>(10u);
- if(test == static_cast<boost::uint32_t>(0u))
+ if (test == static_cast<boost::uint32_t>(0u))
{
break;
}
}
// Establish the upper bound of limbs for extracting the double.
- const int max_elem_in_double_count = static_cast<int>(static_cast<boost::int32_t>(std::numeric_limits<double>::digits10) / cpp_dec_float_elem_digits10)
- + (static_cast<int>(static_cast<boost::int32_t>(std::numeric_limits<double>::digits10) % cpp_dec_float_elem_digits10) != 0 ? 1 : 0)
- + 1;
+ const int max_elem_in_double_count = static_cast<int>(static_cast<boost::int32_t>(std::numeric_limits<double>::digits10) / cpp_dec_float_elem_digits10) + (static_cast<int>(static_cast<boost::int32_t>(std::numeric_limits<double>::digits10) % cpp_dec_float_elem_digits10) != 0 ? 1 : 0) + 1;
// And make sure this upper bound stays within bounds of the elems.
const std::size_t max_elem_extract_count = static_cast<std::size_t>((std::min)(static_cast<boost::int32_t>(max_elem_in_double_count), cpp_dec_float_elem_number));
// Extract into the mantissa the first limb, extracted as a double.
- mantissa = static_cast<double>(data[0]);
+ mantissa = static_cast<double>(data[0]);
double scale = 1.0;
// Extract the rest of the mantissa piecewise from the limbs.
- for(std::size_t i = 1u; i < max_elem_extract_count; i++)
+ for (std::size_t i = 1u; i < max_elem_extract_count; i++)
{
- scale /= static_cast<double>(cpp_dec_float_elem_mask);
- mantissa += (static_cast<double>(data[i]) * scale);
+ scale /= static_cast<double>(cpp_dec_float_elem_mask);
+ mantissa += (static_cast<double>(data[i]) * scale);
}
mantissa /= static_cast<double>(p10);
- if(neg) { mantissa = -mantissa; }
+ if (neg)
+ {
+ mantissa = -mantissa;
+ }
}
template <unsigned Digits10, class ExponentType, class Allocator>
// Returns the double conversion of a cpp_dec_float<Digits10, ExponentType, Allocator>.
// Check for non-normal cpp_dec_float<Digits10, ExponentType, Allocator>.
- if(!(isfinite)())
+ if (!(isfinite)())
{
- if((isnan)())
+ if ((isnan)())
{
return std::numeric_limits<double>::quiet_NaN();
}
else
{
return ((!neg) ? std::numeric_limits<double>::infinity()
- : -std::numeric_limits<double>::infinity());
+ : -std::numeric_limits<double>::infinity());
}
}
cpp_dec_float<Digits10, ExponentType, Allocator> xx(*this);
- if(xx.isneg())
+ if (xx.isneg())
xx.negate();
// Check if *this cpp_dec_float<Digits10, ExponentType, Allocator> is zero.
- if(iszero() || (xx.compare(double_min()) < 0))
+ if (iszero() || (xx.compare(double_min()) < 0))
{
return 0.0;
}
// Check if *this cpp_dec_float<Digits10, ExponentType, Allocator> exceeds the maximum of double.
- if(xx.compare(double_max()) > 0)
+ if (xx.compare(double_max()) > 0)
{
return ((!neg) ? std::numeric_limits<double>::infinity()
- : -std::numeric_limits<double>::infinity());
+ : -std::numeric_limits<double>::infinity());
}
std::stringstream ss;
// Returns the long double conversion of a cpp_dec_float<Digits10, ExponentType, Allocator>.
// Check if *this cpp_dec_float<Digits10, ExponentType, Allocator> is subnormal.
- if(!(isfinite)())
+ if (!(isfinite)())
{
- if((isnan)())
+ if ((isnan)())
{
return std::numeric_limits<long double>::quiet_NaN();
}
else
{
return ((!neg) ? std::numeric_limits<long double>::infinity()
- : -std::numeric_limits<long double>::infinity());
+ : -std::numeric_limits<long double>::infinity());
}
}
cpp_dec_float<Digits10, ExponentType, Allocator> xx(*this);
- if(xx.isneg())
+ if (xx.isneg())
xx.negate();
// Check if *this cpp_dec_float<Digits10, ExponentType, Allocator> is zero.
- if(iszero() || (xx.compare(long_double_min()) < 0))
+ if (iszero() || (xx.compare(long_double_min()) < 0))
{
return static_cast<long double>(0.0);
}
// Check if *this cpp_dec_float<Digits10, ExponentType, Allocator> exceeds the maximum of double.
- if(xx.compare(long_double_max()) > 0)
+ if (xx.compare(long_double_max()) > 0)
{
return ((!neg) ? std::numeric_limits<long double>::infinity()
- : -std::numeric_limits<long double>::infinity());
+ : -std::numeric_limits<long double>::infinity());
}
std::stringstream ss;
// If (x > maximum of long long) or (x < minimum of long long),
// then the maximum or minimum of long long is returned accordingly.
- if(exp < static_cast<ExponentType>(0))
+ if (exp < static_cast<ExponentType>(0))
{
return static_cast<boost::long_long_type>(0);
}
boost::ulong_long_type val;
- if((!b_neg) && (compare(long_long_max()) > 0))
+ if ((!b_neg) && (compare(long_long_max()) > 0))
{
return (std::numeric_limits<boost::long_long_type>::max)();
}
- else if(b_neg && (compare(long_long_min()) < 0))
+ else if (b_neg && (compare(long_long_min()) < 0))
{
return (std::numeric_limits<boost::long_long_type>::min)();
}
{
// Extract the data into an boost::ulong_long_type value.
cpp_dec_float<Digits10, ExponentType, Allocator> xn(extract_integer_part());
- if(xn.isneg())
+ if (xn.isneg())
xn.negate();
val = static_cast<boost::ulong_long_type>(xn.data[0]);
const boost::int32_t imax = (std::min)(static_cast<boost::int32_t>(static_cast<boost::int32_t>(xn.exp) / cpp_dec_float_elem_digits10), static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)));
- for(boost::int32_t i = static_cast<boost::int32_t>(1); i <= imax; i++)
+ for (boost::int32_t i = static_cast<boost::int32_t>(1); i <= imax; i++)
{
val *= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask);
val += static_cast<boost::ulong_long_type>(xn.data[i]);
// See https://svn.boost.org/trac/boost/ticket/9740.
//
boost::long_long_type sval = static_cast<boost::long_long_type>(val - 1);
- sval = -sval;
+ sval = -sval;
--sval;
return sval;
}
// If x is negative, then the boost::ulong_long_type cast of
// the long long extracted value is returned.
- if(isneg())
+ if (isneg())
{
return static_cast<boost::ulong_long_type>(extract_signed_long_long());
}
- if(exp < static_cast<ExponentType>(0))
+ if (exp < static_cast<ExponentType>(0))
{
return static_cast<boost::ulong_long_type>(0u);
}
boost::ulong_long_type val;
- if(xn.compare(ulong_long_max()) > 0)
+ if (xn.compare(ulong_long_max()) > 0)
{
return (std::numeric_limits<boost::ulong_long_type>::max)();
}
const boost::int32_t imax = (std::min)(static_cast<boost::int32_t>(static_cast<boost::int32_t>(xn.exp) / cpp_dec_float_elem_digits10), static_cast<boost::int32_t>(cpp_dec_float_elem_number - static_cast<boost::int32_t>(1)));
- for(boost::int32_t i = static_cast<boost::int32_t>(1); i <= imax; i++)
+ for (boost::int32_t i = static_cast<boost::int32_t>(1); i <= imax; i++)
{
val *= static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask);
val += static_cast<boost::ulong_long_type>(xn.data[i]);
{
// Compute the signed integer part of x.
- if(!(isfinite)())
+ if (!(isfinite)())
{
return *this;
}
- if(exp < static_cast<ExponentType>(0))
+ if (exp < static_cast<ExponentType>(0))
{
// The absolute value of the number is smaller than 1.
// Thus the integer part is zero.
// Clear out the decimal portion
const size_t first_clear = (static_cast<size_t>(x.exp) / static_cast<size_t>(cpp_dec_float_elem_digits10)) + 1u;
- const size_t last_clear = static_cast<size_t>(cpp_dec_float_elem_number);
+ const size_t last_clear = static_cast<size_t>(cpp_dec_float_elem_number);
- if(first_clear < last_clear)
+ if (first_clear < last_clear)
std::fill(x.data.begin() + first_clear, x.data.begin() + last_clear, static_cast<boost::uint32_t>(0u));
return x;
template <unsigned Digits10, class ExponentType, class Allocator>
std::string cpp_dec_float<Digits10, ExponentType, Allocator>::str(boost::intmax_t number_of_digits, std::ios_base::fmtflags f) const
{
- if((this->isinf)())
+ if ((this->isinf)())
{
- if(this->isneg())
+ if (this->isneg())
return "-inf";
- else if(f & std::ios_base::showpos)
+ else if (f & std::ios_base::showpos)
return "+inf";
else
return "inf";
}
- else if((this->isnan)())
+ else if ((this->isnan)())
{
return "nan";
}
- std::string str;
+ std::string str;
boost::intmax_t org_digits(number_of_digits);
- ExponentType my_exp = order();
+ ExponentType my_exp = order();
- if(number_of_digits == 0)
+ if (number_of_digits == 0)
number_of_digits = cpp_dec_float_total_digits10;
- if(f & std::ios_base::fixed)
+ if (f & std::ios_base::fixed)
{
number_of_digits += my_exp + 1;
}
- else if(f & std::ios_base::scientific)
+ else if (f & std::ios_base::scientific)
++number_of_digits;
// Determine the number of elements needed to provide the requested digits from cpp_dec_float<Digits10, ExponentType, Allocator>.
const std::size_t number_of_elements = (std::min)(static_cast<std::size_t>((number_of_digits / static_cast<std::size_t>(cpp_dec_float_elem_digits10)) + 2u),
- static_cast<std::size_t>(cpp_dec_float_elem_number));
+ static_cast<std::size_t>(cpp_dec_float_elem_number));
// Extract the remaining digits from cpp_dec_float<Digits10, ExponentType, Allocator> after the decimal point.
str = boost::lexical_cast<std::string>(data[0]);
std::stringstream ss;
// Extract all of the digits from cpp_dec_float<Digits10, ExponentType, Allocator>, beginning with the first data element.
- for(std::size_t i = static_cast<std::size_t>(1u); i < number_of_elements; i++)
+ for (std::size_t i = static_cast<std::size_t>(1u); i < number_of_elements; i++)
{
ss << std::setw(static_cast<std::streamsize>(cpp_dec_float_elem_digits10))
<< std::setfill(static_cast<char>('0'))
<< data[i];
-
}
str += ss.str();
bool have_leading_zeros = false;
- if(number_of_digits == 0)
+ if (number_of_digits == 0)
{
// We only get here if the output format is "fixed" and we just need to
// round the first non-zero digit.
have_leading_zeros = true;
}
- if(number_of_digits < 0)
+ if (number_of_digits < 0)
{
str = "0";
- if(isneg())
+ if (isneg())
str.insert(static_cast<std::string::size_type>(0), 1, '-');
boost::multiprecision::detail::format_float_string(str, 0, number_of_digits - my_exp - 1, f, this->iszero());
return str;
else
{
// Cut the output to the size of the precision.
- if(str.length() > static_cast<std::string::size_type>(number_of_digits))
+ if (str.length() > static_cast<std::string::size_type>(number_of_digits))
{
// Get the digit after the last needed digit for rounding
const boost::uint32_t round = static_cast<boost::uint32_t>(static_cast<boost::uint32_t>(str[static_cast<std::string::size_type>(number_of_digits)]) - static_cast<boost::uint32_t>('0'));
bool need_round_up = round >= 5u;
- if(round == 5u)
+ if (round == 5u)
{
const boost::uint32_t ix = static_cast<boost::uint32_t>(static_cast<boost::uint32_t>(str[static_cast<std::string::size_type>(number_of_digits - 1)]) - static_cast<boost::uint32_t>('0'));
- if((ix & 1u) == 0)
+ if ((ix & 1u) == 0)
{
// We have an even digit followed by a 5, so we might not actually need to round up
// if all the remaining digits are zero:
- if(str.find_first_not_of('0', static_cast<std::string::size_type>(number_of_digits + 1)) == std::string::npos)
+ if (str.find_first_not_of('0', static_cast<std::string::size_type>(number_of_digits + 1)) == std::string::npos)
{
bool all_zeros = true;
// No none-zero trailing digits in the string, now check whatever parts we didn't convert to the string:
- for(std::size_t i = number_of_elements; i < data.size(); i++)
+ for (std::size_t i = number_of_elements; i < data.size(); i++)
{
- if(data[i])
+ if (data[i])
{
all_zeros = false;
break;
}
}
- if(all_zeros)
+ if (all_zeros)
need_round_up = false; // tie break - round to even.
}
}
// Truncate the string
str.erase(static_cast<std::string::size_type>(number_of_digits));
- if(need_round_up)
+ if (need_round_up)
{
std::size_t ix = static_cast<std::size_t>(str.length() - 1u);
// Every trailing 9 must be rounded up
- while(ix && (static_cast<boost::int32_t>(str.at(ix)) - static_cast<boost::int32_t>('0') == static_cast<boost::int32_t>(9)))
+ while (ix && (static_cast<boost::int32_t>(str.at(ix)) - static_cast<boost::int32_t>('0') == static_cast<boost::int32_t>(9)))
{
str.at(ix) = static_cast<char>('0');
--ix;
}
- if(!ix)
+ if (!ix)
{
// There were nothing but trailing nines.
- if(static_cast<boost::int32_t>(static_cast<boost::int32_t>(str.at(ix)) - static_cast<boost::int32_t>(0x30)) == static_cast<boost::int32_t>(9))
+ if (static_cast<boost::int32_t>(static_cast<boost::int32_t>(str.at(ix)) - static_cast<boost::int32_t>(0x30)) == static_cast<boost::int32_t>(9))
{
// Increment up to the next order and adjust exponent.
str.at(ix) = static_cast<char>('1');
}
}
- if(have_leading_zeros)
+ if (have_leading_zeros)
{
// We need to take the zeros back out again, and correct the exponent
// if we rounded up:
- if(str[std::string::size_type(number_of_digits - 1)] != '0')
+ if (str[std::string::size_type(number_of_digits - 1)] != '0')
{
++my_exp;
str.erase(0, std::string::size_type(number_of_digits - 1));
str.erase(0, std::string::size_type(number_of_digits));
}
- if(isneg())
+ if (isneg())
str.insert(static_cast<std::string::size_type>(0), 1, '-');
boost::multiprecision::detail::format_float_string(str, my_exp, org_digits, f, this->iszero());
bool cpp_dec_float<Digits10, ExponentType, Allocator>::rd_string(const char* const s)
{
#ifndef BOOST_NO_EXCEPTIONS
- try{
+ try
+ {
#endif
- std::string str(s);
+ std::string str(s);
- // TBD: Using several regular expressions may significantly reduce
- // the code complexity (and perhaps the run-time) of rd_string().
+ // TBD: Using several regular expressions may significantly reduce
+ // the code complexity (and perhaps the run-time) of rd_string().
- // Get a possible exponent and remove it.
- exp = static_cast<ExponentType>(0);
-
- std::size_t pos;
-
- if( ((pos = str.find('e')) != std::string::npos)
- || ((pos = str.find('E')) != std::string::npos)
- )
- {
- // Remove the exponent part from the string.
- exp = boost::lexical_cast<ExponentType>(static_cast<const char*>(str.c_str() + (pos + 1u)));
- str = str.substr(static_cast<std::size_t>(0u), pos);
- }
+ // Get a possible exponent and remove it.
+ exp = static_cast<ExponentType>(0);
- // Get a possible +/- sign and remove it.
- neg = false;
+ std::size_t pos;
- if(str.size())
- {
- if(str[0] == '-')
- {
- neg = true;
- str.erase(0, 1);
- }
- else if(str[0] == '+')
- {
- str.erase(0, 1);
- }
- }
- //
- // Special cases for infinities and NaN's:
- //
- if((str == "inf") || (str == "INF") || (str == "infinity") || (str == "INFINITY"))
- {
- if(neg)
+ if (((pos = str.find('e')) != std::string::npos) || ((pos = str.find('E')) != std::string::npos))
{
- *this = this->inf();
- this->negate();
+ // Remove the exponent part from the string.
+ exp = boost::lexical_cast<ExponentType>(static_cast<const char*>(str.c_str() + (pos + 1u)));
+ str = str.substr(static_cast<std::size_t>(0u), pos);
}
- else
- *this = this->inf();
- return true;
- }
- if((str.size() >= 3) && ((str.substr(0, 3) == "nan") || (str.substr(0, 3) == "NAN") || (str.substr(0, 3) == "NaN")))
- {
- *this = this->nan();
- return true;
- }
- // Remove the leading zeros for all input types.
- const std::string::iterator fwd_it_leading_zero = std::find_if(str.begin(), str.end(), char_is_nonzero_predicate);
+ // Get a possible +/- sign and remove it.
+ neg = false;
- if(fwd_it_leading_zero != str.begin())
- {
- if(fwd_it_leading_zero == str.end())
+ if (str.size())
+ {
+ if (str[0] == '-')
+ {
+ neg = true;
+ str.erase(0, 1);
+ }
+ else if (str[0] == '+')
+ {
+ str.erase(0, 1);
+ }
+ }
+ //
+ // Special cases for infinities and NaN's:
+ //
+ if ((str == "inf") || (str == "INF") || (str == "infinity") || (str == "INFINITY"))
{
- // The string contains nothing but leading zeros.
- // This string represents zero.
- operator=(zero());
+ if (neg)
+ {
+ *this = this->inf();
+ this->negate();
+ }
+ else
+ *this = this->inf();
return true;
}
- else
+ if ((str.size() >= 3) && ((str.substr(0, 3) == "nan") || (str.substr(0, 3) == "NAN") || (str.substr(0, 3) == "NaN")))
{
- str.erase(str.begin(), fwd_it_leading_zero);
+ *this = this->nan();
+ return true;
}
- }
-
- // Put the input string into the standard cpp_dec_float<Digits10, ExponentType, Allocator> input form
- // aaa.bbbbE+/-n, where aaa has 1...cpp_dec_float_elem_digits10, bbbb has an
- // even multiple of cpp_dec_float_elem_digits10 which are possibly zero padded
- // on the right-end, and n is a signed 64-bit integer which is an
- // even multiple of cpp_dec_float_elem_digits10.
-
- // Find a possible decimal point.
- pos = str.find(static_cast<char>('.'));
- if(pos != std::string::npos)
- {
- // Remove all trailing insignificant zeros.
- const std::string::const_reverse_iterator rit_non_zero = std::find_if(str.rbegin(), str.rend(), char_is_nonzero_predicate);
+ // Remove the leading zeros for all input types.
+ const std::string::iterator fwd_it_leading_zero = std::find_if(str.begin(), str.end(), char_is_nonzero_predicate);
- if(rit_non_zero != static_cast<std::string::const_reverse_iterator>(str.rbegin()))
+ if (fwd_it_leading_zero != str.begin())
{
- const std::string::size_type ofs = str.length() - std::distance<std::string::const_reverse_iterator>(str.rbegin(), rit_non_zero);
- str.erase(str.begin() + ofs, str.end());
+ if (fwd_it_leading_zero == str.end())
+ {
+ // The string contains nothing but leading zeros.
+ // This string represents zero.
+ operator=(zero());
+ return true;
+ }
+ else
+ {
+ str.erase(str.begin(), fwd_it_leading_zero);
+ }
}
- // Check if the input is identically zero.
- if(str == std::string("."))
- {
- operator=(zero());
- return true;
- }
+ // Put the input string into the standard cpp_dec_float<Digits10, ExponentType, Allocator> input form
+ // aaa.bbbbE+/-n, where aaa has 1...cpp_dec_float_elem_digits10, bbbb has an
+ // even multiple of cpp_dec_float_elem_digits10 which are possibly zero padded
+ // on the right-end, and n is a signed 64-bit integer which is an
+ // even multiple of cpp_dec_float_elem_digits10.
- // Remove leading significant zeros just after the decimal point
- // and adjust the exponent accordingly.
- // Note that the while-loop operates only on strings of the form ".000abcd..."
- // and peels away the zeros just after the decimal point.
- if(str.at(static_cast<std::size_t>(0u)) == static_cast<char>('.'))
+ // Find a possible decimal point.
+ pos = str.find(static_cast<char>('.'));
+
+ if (pos != std::string::npos)
{
- const std::string::iterator it_non_zero = std::find_if(str.begin() + 1u, str.end(), char_is_nonzero_predicate);
+ // Remove all trailing insignificant zeros.
+ const std::string::const_reverse_iterator rit_non_zero = std::find_if(str.rbegin(), str.rend(), char_is_nonzero_predicate);
- std::size_t delta_exp = static_cast<std::size_t>(0u);
+ if (rit_non_zero != static_cast<std::string::const_reverse_iterator>(str.rbegin()))
+ {
+ const std::string::size_type ofs = str.length() - std::distance<std::string::const_reverse_iterator>(str.rbegin(), rit_non_zero);
+ str.erase(str.begin() + ofs, str.end());
+ }
- if(str.at(static_cast<std::size_t>(1u)) == static_cast<char>('0'))
+ // Check if the input is identically zero.
+ if (str == std::string("."))
{
- delta_exp = std::distance<std::string::const_iterator>(str.begin() + 1u, it_non_zero);
+ operator=(zero());
+ return true;
}
- // Bring one single digit into the mantissa and adjust the exponent accordingly.
- str.erase(str.begin(), it_non_zero);
- str.insert(static_cast<std::string::size_type>(1u), ".");
- exp -= static_cast<ExponentType>(delta_exp + 1u);
+ // Remove leading significant zeros just after the decimal point
+ // and adjust the exponent accordingly.
+ // Note that the while-loop operates only on strings of the form ".000abcd..."
+ // and peels away the zeros just after the decimal point.
+ if (str.at(static_cast<std::size_t>(0u)) == static_cast<char>('.'))
+ {
+ const std::string::iterator it_non_zero = std::find_if(str.begin() + 1u, str.end(), char_is_nonzero_predicate);
+
+ std::size_t delta_exp = static_cast<std::size_t>(0u);
+
+ if (str.at(static_cast<std::size_t>(1u)) == static_cast<char>('0'))
+ {
+ delta_exp = std::distance<std::string::const_iterator>(str.begin() + 1u, it_non_zero);
+ }
+
+ // Bring one single digit into the mantissa and adjust the exponent accordingly.
+ str.erase(str.begin(), it_non_zero);
+ str.insert(static_cast<std::string::size_type>(1u), ".");
+ exp -= static_cast<ExponentType>(delta_exp + 1u);
+ }
+ }
+ else
+ {
+ // Input string has no decimal point: Append decimal point.
+ str.append(".");
}
- }
- else
- {
- // Input string has no decimal point: Append decimal point.
- str.append(".");
- }
- // Shift the decimal point such that the exponent is an even multiple of cpp_dec_float_elem_digits10.
- std::size_t n_shift = static_cast<std::size_t>(0u);
- const std::size_t n_exp_rem = static_cast<std::size_t>(exp % static_cast<ExponentType>(cpp_dec_float_elem_digits10));
+ // Shift the decimal point such that the exponent is an even multiple of cpp_dec_float_elem_digits10.
+ std::size_t n_shift = static_cast<std::size_t>(0u);
+ const std::size_t n_exp_rem = static_cast<std::size_t>(exp % static_cast<ExponentType>(cpp_dec_float_elem_digits10));
- if((exp % static_cast<ExponentType>(cpp_dec_float_elem_digits10)) != static_cast<ExponentType>(0))
- {
- n_shift = ((exp < static_cast<ExponentType>(0))
- ? static_cast<std::size_t>(n_exp_rem + static_cast<std::size_t>(cpp_dec_float_elem_digits10))
- : static_cast<std::size_t>(n_exp_rem));
- }
+ if ((exp % static_cast<ExponentType>(cpp_dec_float_elem_digits10)) != static_cast<ExponentType>(0))
+ {
+ n_shift = ((exp < static_cast<ExponentType>(0))
+ ? static_cast<std::size_t>(n_exp_rem + static_cast<std::size_t>(cpp_dec_float_elem_digits10))
+ : static_cast<std::size_t>(n_exp_rem));
+ }
- // Make sure that there are enough digits for the decimal point shift.
- pos = str.find(static_cast<char>('.'));
+ // Make sure that there are enough digits for the decimal point shift.
+ pos = str.find(static_cast<char>('.'));
- std::size_t pos_plus_one = static_cast<std::size_t>(pos + 1u);
+ std::size_t pos_plus_one = static_cast<std::size_t>(pos + 1u);
- if((str.length() - pos_plus_one) < n_shift)
- {
- const std::size_t sz = static_cast<std::size_t>(n_shift - (str.length() - pos_plus_one));
+ if ((str.length() - pos_plus_one) < n_shift)
+ {
+ const std::size_t sz = static_cast<std::size_t>(n_shift - (str.length() - pos_plus_one));
- str.append(std::string(sz, static_cast<char>('0')));
- }
+ str.append(std::string(sz, static_cast<char>('0')));
+ }
- // Do the decimal point shift.
- if(n_shift != static_cast<std::size_t>(0u))
- {
- str.insert(static_cast<std::string::size_type>(pos_plus_one + n_shift), ".");
+ // Do the decimal point shift.
+ if (n_shift != static_cast<std::size_t>(0u))
+ {
+ str.insert(static_cast<std::string::size_type>(pos_plus_one + n_shift), ".");
- str.erase(pos, static_cast<std::string::size_type>(1u));
+ str.erase(pos, static_cast<std::string::size_type>(1u));
- exp -= static_cast<ExponentType>(n_shift);
- }
+ exp -= static_cast<ExponentType>(n_shift);
+ }
- // Cut the size of the mantissa to <= cpp_dec_float_elem_digits10.
- pos = str.find(static_cast<char>('.'));
- pos_plus_one = static_cast<std::size_t>(pos + 1u);
+ // Cut the size of the mantissa to <= cpp_dec_float_elem_digits10.
+ pos = str.find(static_cast<char>('.'));
+ pos_plus_one = static_cast<std::size_t>(pos + 1u);
- if(pos > static_cast<std::size_t>(cpp_dec_float_elem_digits10))
- {
- const boost::int32_t n_pos = static_cast<boost::int32_t>(pos);
- const boost::int32_t n_rem_is_zero = ((static_cast<boost::int32_t>(n_pos % cpp_dec_float_elem_digits10) == static_cast<boost::int32_t>(0)) ? static_cast<boost::int32_t>(1) : static_cast<boost::int32_t>(0));
- const boost::int32_t n = static_cast<boost::int32_t>(static_cast<boost::int32_t>(n_pos / cpp_dec_float_elem_digits10) - n_rem_is_zero);
+ if (pos > static_cast<std::size_t>(cpp_dec_float_elem_digits10))
+ {
+ const boost::int32_t n_pos = static_cast<boost::int32_t>(pos);
+ const boost::int32_t n_rem_is_zero = ((static_cast<boost::int32_t>(n_pos % cpp_dec_float_elem_digits10) == static_cast<boost::int32_t>(0)) ? static_cast<boost::int32_t>(1) : static_cast<boost::int32_t>(0));
+ const boost::int32_t n = static_cast<boost::int32_t>(static_cast<boost::int32_t>(n_pos / cpp_dec_float_elem_digits10) - n_rem_is_zero);
- str.insert(static_cast<std::size_t>(static_cast<boost::int32_t>(n_pos - static_cast<boost::int32_t>(n * cpp_dec_float_elem_digits10))), ".");
+ str.insert(static_cast<std::size_t>(static_cast<boost::int32_t>(n_pos - static_cast<boost::int32_t>(n * cpp_dec_float_elem_digits10))), ".");
- str.erase(pos_plus_one, static_cast<std::size_t>(1u));
+ str.erase(pos_plus_one, static_cast<std::size_t>(1u));
- exp += static_cast<ExponentType>(static_cast<ExponentType>(n) * static_cast<ExponentType>(cpp_dec_float_elem_digits10));
- }
+ exp += static_cast<ExponentType>(static_cast<ExponentType>(n) * static_cast<ExponentType>(cpp_dec_float_elem_digits10));
+ }
- // Pad the decimal part such that its value is an even
- // multiple of cpp_dec_float_elem_digits10.
- pos = str.find(static_cast<char>('.'));
- pos_plus_one = static_cast<std::size_t>(pos + 1u);
+ // Pad the decimal part such that its value is an even
+ // multiple of cpp_dec_float_elem_digits10.
+ pos = str.find(static_cast<char>('.'));
+ pos_plus_one = static_cast<std::size_t>(pos + 1u);
- const boost::int32_t n_dec = static_cast<boost::int32_t>(static_cast<boost::int32_t>(str.length() - 1u) - static_cast<boost::int32_t>(pos));
- const boost::int32_t n_rem = static_cast<boost::int32_t>(n_dec % cpp_dec_float_elem_digits10);
+ const boost::int32_t n_dec = static_cast<boost::int32_t>(static_cast<boost::int32_t>(str.length() - 1u) - static_cast<boost::int32_t>(pos));
+ const boost::int32_t n_rem = static_cast<boost::int32_t>(n_dec % cpp_dec_float_elem_digits10);
- boost::int32_t n_cnt = ((n_rem != static_cast<boost::int32_t>(0))
- ? static_cast<boost::int32_t>(cpp_dec_float_elem_digits10 - n_rem)
- : static_cast<boost::int32_t>(0));
+ boost::int32_t n_cnt = ((n_rem != static_cast<boost::int32_t>(0))
+ ? static_cast<boost::int32_t>(cpp_dec_float_elem_digits10 - n_rem)
+ : static_cast<boost::int32_t>(0));
- if(n_cnt != static_cast<boost::int32_t>(0))
- {
- str.append(static_cast<std::size_t>(n_cnt), static_cast<char>('0'));
- }
+ if (n_cnt != static_cast<boost::int32_t>(0))
+ {
+ str.append(static_cast<std::size_t>(n_cnt), static_cast<char>('0'));
+ }
- // Truncate decimal part if it is too long.
- const std::size_t max_dec = static_cast<std::size_t>((cpp_dec_float_elem_number - 1) * cpp_dec_float_elem_digits10);
+ // Truncate decimal part if it is too long.
+ const std::size_t max_dec = static_cast<std::size_t>((cpp_dec_float_elem_number - 1) * cpp_dec_float_elem_digits10);
- if(static_cast<std::size_t>(str.length() - pos) > max_dec)
- {
- str = str.substr(static_cast<std::size_t>(0u),
- static_cast<std::size_t>(pos_plus_one + max_dec));
- }
+ if (static_cast<std::size_t>(str.length() - pos) > max_dec)
+ {
+ str = str.substr(static_cast<std::size_t>(0u),
+ static_cast<std::size_t>(pos_plus_one + max_dec));
+ }
- // Now the input string has the standard cpp_dec_float<Digits10, ExponentType, Allocator> input form.
- // (See the comment above.)
+ // Now the input string has the standard cpp_dec_float<Digits10, ExponentType, Allocator> input form.
+ // (See the comment above.)
- // Set all the data elements to 0.
- std::fill(data.begin(), data.end(), static_cast<boost::uint32_t>(0u));
+ // Set all the data elements to 0.
+ std::fill(data.begin(), data.end(), static_cast<boost::uint32_t>(0u));
- // Extract the data.
+ // Extract the data.
- // First get the digits to the left of the decimal point...
- data[0u] = boost::lexical_cast<boost::uint32_t>(str.substr(static_cast<std::size_t>(0u), pos));
+ // First get the digits to the left of the decimal point...
+ data[0u] = boost::lexical_cast<boost::uint32_t>(str.substr(static_cast<std::size_t>(0u), pos));
- // ...then get the remaining digits to the right of the decimal point.
- const std::string::size_type i_end = ((str.length() - pos_plus_one) / static_cast<std::string::size_type>(cpp_dec_float_elem_digits10));
+ // ...then get the remaining digits to the right of the decimal point.
+ const std::string::size_type i_end = ((str.length() - pos_plus_one) / static_cast<std::string::size_type>(cpp_dec_float_elem_digits10));
- for(std::string::size_type i = static_cast<std::string::size_type>(0u); i < i_end; i++)
- {
- const std::string::const_iterator it = str.begin()
- + pos_plus_one
- + (i * static_cast<std::string::size_type>(cpp_dec_float_elem_digits10));
+ for (std::string::size_type i = static_cast<std::string::size_type>(0u); i < i_end; i++)
+ {
+ const std::string::const_iterator it = str.begin() + pos_plus_one + (i * static_cast<std::string::size_type>(cpp_dec_float_elem_digits10));
- data[i + 1u] = boost::lexical_cast<boost::uint32_t>(std::string(it, it + static_cast<std::string::size_type>(cpp_dec_float_elem_digits10)));
- }
+ data[i + 1u] = boost::lexical_cast<boost::uint32_t>(std::string(it, it + static_cast<std::string::size_type>(cpp_dec_float_elem_digits10)));
+ }
- // Check for overflow...
- if(exp > cpp_dec_float_max_exp10)
- {
- const bool b_result_is_neg = neg;
+ // Check for overflow...
+ if (exp > cpp_dec_float_max_exp10)
+ {
+ const bool b_result_is_neg = neg;
- *this = inf();
- if(b_result_is_neg)
- negate();
- }
+ *this = inf();
+ if (b_result_is_neg)
+ negate();
+ }
- // ...and check for underflow.
- if(exp <= cpp_dec_float_min_exp10)
- {
- if(exp == cpp_dec_float_min_exp10)
+ // ...and check for underflow.
+ if (exp <= cpp_dec_float_min_exp10)
{
- // Check for identity with the minimum value.
- cpp_dec_float<Digits10, ExponentType, Allocator> test = *this;
+ if (exp == cpp_dec_float_min_exp10)
+ {
+ // Check for identity with the minimum value.
+ cpp_dec_float<Digits10, ExponentType, Allocator> test = *this;
- test.exp = static_cast<ExponentType>(0);
+ test.exp = static_cast<ExponentType>(0);
- if(test.isone())
+ if (test.isone())
+ {
+ *this = zero();
+ }
+ }
+ else
{
*this = zero();
}
}
- else
- {
- *this = zero();
- }
- }
#ifndef BOOST_NO_EXCEPTIONS
}
- catch(const bad_lexical_cast&)
+ catch (const bad_lexical_cast&)
{
// Rethrow with better error message:
std::string msg = "Unable to parse the string \"";
template <unsigned Digits10, class ExponentType, class Allocator>
cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float(const double mantissa, const ExponentType exponent)
- : data (),
- exp (static_cast<ExponentType>(0)),
- neg (false),
- fpclass (cpp_dec_float_finite),
- prec_elem(cpp_dec_float_elem_number)
+ : data(),
+ exp(static_cast<ExponentType>(0)),
+ neg(false),
+ fpclass(cpp_dec_float_finite),
+ prec_elem(cpp_dec_float_elem_number)
{
// Create *this cpp_dec_float<Digits10, ExponentType, Allocator> from a given mantissa and exponent.
// Note: This constructor does not maintain the full precision of double.
const bool mantissa_is_iszero = (::fabs(mantissa) < ((std::numeric_limits<double>::min)() * (1.0 + std::numeric_limits<double>::epsilon())));
- if(mantissa_is_iszero)
+ if (mantissa_is_iszero)
{
std::fill(data.begin(), data.end(), static_cast<boost::uint32_t>(0u));
return;
const bool b_neg = (mantissa < 0.0);
- double d = ((!b_neg) ? mantissa : -mantissa);
+ double d = ((!b_neg) ? mantissa : -mantissa);
ExponentType e = exponent;
- while(d > 10.0) { d /= 10.0; ++e; }
- while(d < 1.0) { d *= 10.0; --e; }
+ while (d > 10.0)
+ {
+ d /= 10.0;
+ ++e;
+ }
+ while (d < 1.0)
+ {
+ d *= 10.0;
+ --e;
+ }
boost::int32_t shift = static_cast<boost::int32_t>(e % static_cast<boost::int32_t>(cpp_dec_float_elem_digits10));
- while(static_cast<boost::int32_t>(shift-- % cpp_dec_float_elem_digits10) != static_cast<boost::int32_t>(0))
+ while (static_cast<boost::int32_t>(shift-- % cpp_dec_float_elem_digits10) != static_cast<boost::int32_t>(0))
{
d *= 10.0;
--e;
static const boost::int32_t digit_ratio = static_cast<boost::int32_t>(static_cast<boost::int32_t>(std::numeric_limits<double>::digits10) / static_cast<boost::int32_t>(cpp_dec_float_elem_digits10));
static const boost::int32_t digit_loops = static_cast<boost::int32_t>(digit_ratio + static_cast<boost::int32_t>(2));
- for(boost::int32_t i = static_cast<boost::int32_t>(0); i < digit_loops; i++)
+ for (boost::int32_t i = static_cast<boost::int32_t>(0); i < digit_loops; i++)
{
boost::uint32_t n = static_cast<boost::uint32_t>(static_cast<boost::uint64_t>(d));
- data[i] = static_cast<boost::uint32_t>(n);
+ data[i] = static_cast<boost::uint32_t>(n);
d -= static_cast<double>(n);
d *= static_cast<double>(cpp_dec_float_elem_mask);
}
}
template <unsigned Digits10, class ExponentType, class Allocator>
-cpp_dec_float<Digits10, ExponentType, Allocator>& cpp_dec_float<Digits10, ExponentType, Allocator>::operator= (long double a)
+cpp_dec_float<Digits10, ExponentType, Allocator>& cpp_dec_float<Digits10, ExponentType, Allocator>::operator=(long double a)
{
// Christopher Kormanyos's original code used a cast to boost::long_long_type here, but that fails
// when long double has more digits than a boost::long_long_type.
+ using std::floor;
using std::frexp;
using std::ldexp;
- using std::floor;
- if(a == 0)
+ if (a == 0)
return *this = zero();
- if(a == 1)
+ if (a == 1)
return *this = one();
- if((boost::math::isinf)(a))
+ if ((boost::math::isinf)(a))
{
*this = inf();
- if(a < 0)
+ if (a < 0)
this->negate();
return *this;
}
- if((boost::math::isnan)(a))
+ if ((boost::math::isnan)(a))
return *this = nan();
- int e;
+ int e;
long double f, term;
*this = zero();
static const int shift = std::numeric_limits<int>::digits - 1;
- while(f)
+ while (f)
{
// extract int sized bits from f:
f = ldexp(f, shift);
term = floor(f);
e -= shift;
*this *= pow2(shift);
- if(term > 0)
+ if (term > 0)
add_unsigned_long_long(static_cast<unsigned>(term));
else
sub_unsigned_long_long(static_cast<unsigned>(-term));
f -= term;
}
- if(e != 0)
+ if (e != 0)
*this *= pow2(e);
return *this;
{
std::fill(data.begin(), data.end(), static_cast<boost::uint32_t>(0u));
- exp = static_cast<ExponentType>(0);
- neg = false;
- fpclass = cpp_dec_float_finite;
+ exp = static_cast<ExponentType>(0);
+ neg = false;
+ fpclass = cpp_dec_float_finite;
prec_elem = cpp_dec_float_elem_number;
- if(u == 0)
+ if (u == 0)
{
return;
}
- std::size_t i =static_cast<std::size_t>(0u);
+ std::size_t i = static_cast<std::size_t>(0u);
boost::ulong_long_type uu = u;
- boost::uint32_t temp[(std::numeric_limits<boost::ulong_long_type>::digits10 / static_cast<int>(cpp_dec_float_elem_digits10)) + 3] = { static_cast<boost::uint32_t>(0u) };
+ boost::uint32_t temp[(std::numeric_limits<boost::ulong_long_type>::digits10 / static_cast<int>(cpp_dec_float_elem_digits10)) + 3] = {static_cast<boost::uint32_t>(0u)};
- while(uu != static_cast<boost::ulong_long_type>(0u))
+ while (uu != static_cast<boost::ulong_long_type>(0u))
{
temp[i] = static_cast<boost::uint32_t>(uu % static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask));
- uu = static_cast<boost::ulong_long_type>(uu / static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask));
+ uu = static_cast<boost::ulong_long_type>(uu / static_cast<boost::ulong_long_type>(cpp_dec_float_elem_mask));
++i;
}
- if(i > static_cast<std::size_t>(1u))
+ if (i > static_cast<std::size_t>(1u))
{
exp += static_cast<ExponentType>((i - 1u) * static_cast<std::size_t>(cpp_dec_float_elem_digits10));
}
boost::uint64_t carry = static_cast<boost::uint64_t>(0u);
- for(boost::int32_t j = static_cast<boost::int32_t>(p - 1u); j >= static_cast<boost::int32_t>(0); j--)
+ for (boost::int32_t j = static_cast<boost::int32_t>(p - 1u); j >= static_cast<boost::int32_t>(0); j--)
{
- boost::uint64_t sum = carry;
+ boost::uint64_t sum = carry;
- for(boost::int32_t i = j; i >= static_cast<boost::int32_t>(0); i--)
- {
- sum += static_cast<boost::uint64_t>(u[j - i] * static_cast<boost::uint64_t>(v[i]));
- }
+ for (boost::int32_t i = j; i >= static_cast<boost::int32_t>(0); i--)
+ {
+ sum += static_cast<boost::uint64_t>(u[j - i] * static_cast<boost::uint64_t>(v[i]));
+ }
- u[j] = static_cast<boost::uint32_t>(sum % static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
- carry = static_cast<boost::uint64_t>(sum / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
+ u[j] = static_cast<boost::uint32_t>(sum % static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
+ carry = static_cast<boost::uint64_t>(sum / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
}
return static_cast<boost::uint32_t>(carry);
boost::uint64_t carry = static_cast<boost::uint64_t>(0u);
// Multiplication loop.
- for(boost::int32_t j = p - 1; j >= static_cast<boost::int32_t>(0); j--)
+ for (boost::int32_t j = p - 1; j >= static_cast<boost::int32_t>(0); j--)
{
const boost::uint64_t t = static_cast<boost::uint64_t>(carry + static_cast<boost::uint64_t>(u[j] * static_cast<boost::uint64_t>(n)));
- carry = static_cast<boost::uint64_t>(t / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
- u[j] = static_cast<boost::uint32_t>(t - static_cast<boost::uint64_t>(static_cast<boost::uint32_t>(cpp_dec_float_elem_mask) * static_cast<boost::uint64_t>(carry)));
+ carry = static_cast<boost::uint64_t>(t / static_cast<boost::uint32_t>(cpp_dec_float_elem_mask));
+ u[j] = static_cast<boost::uint32_t>(t - static_cast<boost::uint64_t>(static_cast<boost::uint32_t>(cpp_dec_float_elem_mask) * static_cast<boost::uint64_t>(carry)));
}
return static_cast<boost::uint32_t>(carry);
{
boost::uint64_t prev = static_cast<boost::uint64_t>(0u);
- for(boost::int32_t j = static_cast<boost::int32_t>(0); j < p; j++)
+ for (boost::int32_t j = static_cast<boost::int32_t>(0); j < p; j++)
{
const boost::uint64_t t = static_cast<boost::uint64_t>(u[j] + static_cast<boost::uint64_t>(prev * static_cast<boost::uint32_t>(cpp_dec_float_elem_mask)));
- u[j] = static_cast<boost::uint32_t>(t / n);
- prev = static_cast<boost::uint64_t>(t - static_cast<boost::uint64_t>(n * static_cast<boost::uint64_t>(u[j])));
+ u[j] = static_cast<boost::uint32_t>(t / n);
+ prev = static_cast<boost::uint64_t>(t - static_cast<boost::uint64_t>(n * static_cast<boost::uint64_t>(u[j])));
}
return static_cast<boost::uint32_t>(prev);
// symmetric about 0.
init.do_nothing();
static const boost::array<cpp_dec_float<Digits10, ExponentType, Allocator>, 255u> p2_data =
- {{
- cpp_dec_float("5.877471754111437539843682686111228389093327783860437607543758531392086297273635864257812500000000000e-39"),
- cpp_dec_float("1.175494350822287507968736537222245677818665556772087521508751706278417259454727172851562500000000000e-38"),
- cpp_dec_float("2.350988701644575015937473074444491355637331113544175043017503412556834518909454345703125000000000000e-38"),
- cpp_dec_float("4.701977403289150031874946148888982711274662227088350086035006825113669037818908691406250000000000000e-38"),
- cpp_dec_float("9.403954806578300063749892297777965422549324454176700172070013650227338075637817382812500000000000000e-38"),
- cpp_dec_float("1.880790961315660012749978459555593084509864890835340034414002730045467615127563476562500000000000000e-37"),
- cpp_dec_float("3.761581922631320025499956919111186169019729781670680068828005460090935230255126953125000000000000000e-37"),
- cpp_dec_float("7.523163845262640050999913838222372338039459563341360137656010920181870460510253906250000000000000000e-37"),
- cpp_dec_float("1.504632769052528010199982767644474467607891912668272027531202184036374092102050781250000000000000000e-36"),
- cpp_dec_float("3.009265538105056020399965535288948935215783825336544055062404368072748184204101562500000000000000000e-36"),
- cpp_dec_float("6.018531076210112040799931070577897870431567650673088110124808736145496368408203125000000000000000000e-36"),
- cpp_dec_float("1.203706215242022408159986214115579574086313530134617622024961747229099273681640625000000000000000000e-35"),
- cpp_dec_float("2.407412430484044816319972428231159148172627060269235244049923494458198547363281250000000000000000000e-35"),
- cpp_dec_float("4.814824860968089632639944856462318296345254120538470488099846988916397094726562500000000000000000000e-35"),
- cpp_dec_float("9.629649721936179265279889712924636592690508241076940976199693977832794189453125000000000000000000000e-35"),
- cpp_dec_float("1.925929944387235853055977942584927318538101648215388195239938795566558837890625000000000000000000000e-34"),
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- cpp_dec_float("0.125"),
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- cpp_dec_float("0.5"),
- one(),
- two(),
- cpp_dec_float(static_cast<boost::ulong_long_type>(4)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(8)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(16)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(32)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(64)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(128)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(256)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(512)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(1024)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(2048)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(4096)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(8192)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(16384)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(32768)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(65536)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(131072)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(262144)),
- cpp_dec_float(static_cast<boost::ulong_long_type>(524288)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 20u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 21u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 22u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 23u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 24u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 25u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 26u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 27u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 28u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 29u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 30u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uL << 31u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 32u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 33u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 34u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 35u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 36u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 37u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 38u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 39u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 40u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 41u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 42u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 43u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 44u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 45u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 46u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 47u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 48u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 49u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 50u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 51u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 52u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 53u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 54u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 55u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 56u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 57u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 58u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 59u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 60u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 61u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 62u)),
- cpp_dec_float(static_cast<boost::uint64_t>(1uLL << 63u)),
- cpp_dec_float("1.844674407370955161600000000000000000000000000000000000000000000000000000000000000000000000000000000e19"),
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- }};
-
- if((p > static_cast<boost::long_long_type>(-128)) && (p < static_cast<boost::long_long_type>(+128)))
+ {{cpp_dec_float("5.877471754111437539843682686111228389093327783860437607543758531392086297273635864257812500000000000e-39"),
+ cpp_dec_float("1.175494350822287507968736537222245677818665556772087521508751706278417259454727172851562500000000000e-38"),
+ cpp_dec_float("2.350988701644575015937473074444491355637331113544175043017503412556834518909454345703125000000000000e-38"),
+ cpp_dec_float("4.701977403289150031874946148888982711274662227088350086035006825113669037818908691406250000000000000e-38"),
+ cpp_dec_float("9.403954806578300063749892297777965422549324454176700172070013650227338075637817382812500000000000000e-38"),
+ cpp_dec_float("1.880790961315660012749978459555593084509864890835340034414002730045467615127563476562500000000000000e-37"),
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+ if ((p > static_cast<boost::long_long_type>(-128)) && (p < static_cast<boost::long_long_type>(+128)))
{
return p2_data[static_cast<std::size_t>(p + ((p2_data.size() - 1u) / 2u))];
}
else
{
// Compute and return 2^p.
- if(p < static_cast<boost::long_long_type>(0))
+ if (p < static_cast<boost::long_long_type>(0))
{
return pow2(static_cast<boost::long_long_type>(-p)).calculate_inv();
}
}
}
-
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_add(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& o)
{
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_add(cpp_dec_float<Digits10, ExponentType, Allocator>& result, boost::long_long_type o)
{
- if(o < 0)
+ if (o < 0)
result.sub_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(o));
else
result.add_unsigned_long_long(o);
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_subtract(cpp_dec_float<Digits10, ExponentType, Allocator>& result, boost::long_long_type o)
{
- if(o < 0)
+ if (o < 0)
result.add_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(o));
else
result.sub_unsigned_long_long(o);
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_multiply(cpp_dec_float<Digits10, ExponentType, Allocator>& result, boost::long_long_type o)
{
- if(o < 0)
+ if (o < 0)
{
result.mul_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(o));
result.negate();
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_divide(cpp_dec_float<Digits10, ExponentType, Allocator>& result, boost::long_long_type o)
{
- if(o < 0)
+ if (o < 0)
{
result.div_unsigned_long_long(boost::multiprecision::detail::unsigned_abs(o));
result.negate();
template <unsigned Digits10, class ExponentType, class Allocator>
inline int eval_fpclassify(const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
- if((x.isinf)())
+ if ((x.isinf)())
return FP_INFINITE;
- if((x.isnan)())
+ if ((x.isnan)())
return FP_NAN;
- if(x.iszero())
+ if (x.iszero())
return FP_ZERO;
return FP_NORMAL;
}
inline void eval_abs(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
result = x;
- if(x.isneg())
+ if (x.isneg())
result.negate();
}
inline void eval_fabs(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
result = x;
- if(x.isneg())
+ if (x.isneg())
result.negate();
}
inline void eval_floor(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
result = x;
- if(!(x.isfinite)() || x.isint())
+ if (!(x.isfinite)() || x.isint())
{
- if((x.isnan)())
+ if ((x.isnan)())
errno = EDOM;
return;
}
- if(x.isneg())
+ if (x.isneg())
result -= cpp_dec_float<Digits10, ExponentType, Allocator>::one();
result = result.extract_integer_part();
}
inline void eval_ceil(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
result = x;
- if(!(x.isfinite)() || x.isint())
+ if (!(x.isfinite)() || x.isint())
{
- if((x.isnan)())
+ if ((x.isnan)())
errno = EDOM;
return;
}
- if(!x.isneg())
+ if (!x.isneg())
result += cpp_dec_float<Digits10, ExponentType, Allocator>::one();
result = result.extract_integer_part();
}
template <unsigned Digits10, class ExponentType, class Allocator>
inline void eval_trunc(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& x)
{
- if(x.isint() || !(x.isfinite)())
+ if (x.isint() || !(x.isfinite)())
{
result = x;
- if((x.isnan)())
+ if ((x.isnan)())
errno = EDOM;
return;
}
template <unsigned Digits10, class ExponentType, class Allocator>
inline ExponentType eval_ilogb(const cpp_dec_float<Digits10, ExponentType, Allocator>& val)
{
- if(val.iszero())
+ if (val.iszero())
return (std::numeric_limits<ExponentType>::min)();
- if((val.isinf)())
+ if ((val.isinf)())
return INT_MAX;
- if((val.isnan)())
+ if ((val.isnan)())
#ifdef FP_ILOGBNAN
return FP_ILOGBNAN;
#else
inline void eval_scalbn(cpp_dec_float<Digits10, ExponentType, Allocator>& result, const cpp_dec_float<Digits10, ExponentType, Allocator>& val, ArgType e_)
{
using default_ops::eval_multiply;
- const ExponentType e = static_cast<ExponentType>(e_);
+ const ExponentType e = static_cast<ExponentType>(e_);
cpp_dec_float<Digits10, ExponentType, Allocator> t(1.0, e);
eval_multiply(result, val, t);
}
{
const boost::long_long_type the_exp = static_cast<boost::long_long_type>(e);
- if((the_exp > (std::numeric_limits<ExponentType>::max)()) || (the_exp < (std::numeric_limits<ExponentType>::min)()))
+ if ((the_exp > (std::numeric_limits<ExponentType>::max)()) || (the_exp < (std::numeric_limits<ExponentType>::min)()))
BOOST_THROW_EXCEPTION(std::runtime_error(std::string("Exponent value is out of range.")));
result = x;
if ((the_exp > static_cast<boost::long_long_type>(-std::numeric_limits<boost::long_long_type>::digits)) && (the_exp < static_cast<boost::long_long_type>(0)))
result.div_unsigned_long_long(1ULL << static_cast<boost::long_long_type>(-the_exp));
- else if((the_exp < static_cast<boost::long_long_type>( std::numeric_limits<boost::long_long_type>::digits)) && (the_exp > static_cast<boost::long_long_type>(0)))
+ else if ((the_exp < static_cast<boost::long_long_type>(std::numeric_limits<boost::long_long_type>::digits)) && (the_exp > static_cast<boost::long_long_type>(0)))
result.mul_unsigned_long_long(1ULL << the_exp);
- else if(the_exp != static_cast<boost::long_long_type>(0))
+ else if (the_exp != static_cast<boost::long_long_type>(0))
result *= cpp_dec_float<Digits10, ExponentType, Allocator>::pow2(e);
}
{
result = x;
- if(result.iszero() || (result.isinf)() || (result.isnan)())
+ if (result.iszero() || (result.isinf)() || (result.isnan)())
{
*e = 0;
return;
}
- if(result.isneg())
+ if (result.isneg())
result.negate();
ExponentType t = result.order();
BOOST_MP_USING_ABS
- if(abs(t) < ((std::numeric_limits<ExponentType>::max)() / 1000))
+ if (abs(t) < ((std::numeric_limits<ExponentType>::max)() / 1000))
{
t *= 1000;
t /= 301;
result *= cpp_dec_float<Digits10, ExponentType, Allocator>::pow2(-t);
- if(result.iszero() || (result.isinf)() || (result.isnan)())
+ if (result.iszero() || (result.isinf)() || (result.isnan)())
{
// pow2 overflowed, slip the calculation up:
result = x;
- if(result.isneg())
+ if (result.isneg())
result.negate();
t /= 2;
result *= cpp_dec_float<Digits10, ExponentType, Allocator>::pow2(-t);
}
BOOST_MP_USING_ABS
- if(abs(result.order()) > 5)
+ if (abs(result.order()) > 5)
{
// If our first estimate doesn't get close enough then try recursion until we do:
- ExponentType e2;
+ ExponentType e2;
cpp_dec_float<Digits10, ExponentType, Allocator> r2;
eval_frexp(r2, result, &e2);
// overflow protection:
- if((t > 0) && (e2 > 0) && (t > (std::numeric_limits<ExponentType>::max)() - e2))
+ if ((t > 0) && (e2 > 0) && (t > (std::numeric_limits<ExponentType>::max)() - e2))
BOOST_THROW_EXCEPTION(std::runtime_error("Exponent is too large to be represented as a power of 2."));
- if((t < 0) && (e2 < 0) && (t < (std::numeric_limits<ExponentType>::min)() - e2))
+ if ((t < 0) && (e2 < 0) && (t < (std::numeric_limits<ExponentType>::min)() - e2))
BOOST_THROW_EXCEPTION(std::runtime_error("Exponent is too large to be represented as a power of 2."));
t += e2;
result = r2;
}
- while(result.compare(cpp_dec_float<Digits10, ExponentType, Allocator>::one()) >= 0)
+ while (result.compare(cpp_dec_float<Digits10, ExponentType, Allocator>::one()) >= 0)
{
result /= cpp_dec_float<Digits10, ExponentType, Allocator>::two();
++t;
}
- while(result.compare(cpp_dec_float<Digits10, ExponentType, Allocator>::half()) < 0)
+ while (result.compare(cpp_dec_float<Digits10, ExponentType, Allocator>::half()) < 0)
{
result *= cpp_dec_float<Digits10, ExponentType, Allocator>::two();
--t;
}
*e = t;
- if(x.isneg())
+ if (x.isneg())
result.negate();
}
{
ExponentType t;
eval_frexp(result, x, &t);
- if((t > (std::numeric_limits<int>::max)()) || (t < (std::numeric_limits<int>::min)()))
+ if ((t > (std::numeric_limits<int>::max)()) || (t < (std::numeric_limits<int>::min)()))
BOOST_THROW_EXCEPTION(std::runtime_error("Exponent is outside the range of an int"));
*e = static_cast<int>(t);
}
using boost::multiprecision::backends::cpp_dec_float;
-
-typedef number<cpp_dec_float<50> > cpp_dec_float_50;
+typedef number<cpp_dec_float<50> > cpp_dec_float_50;
typedef number<cpp_dec_float<100> > cpp_dec_float_100;
#ifdef BOOST_NO_SFINAE_EXPR
-namespace detail{
+namespace detail {
-template<unsigned D1, class E1, class A1, unsigned D2, class E2, class A2>
-struct is_explicitly_convertible<cpp_dec_float<D1, E1, A1>, cpp_dec_float<D2, E2, A2> > : public mpl::true_ {};
+template <unsigned D1, class E1, class A1, unsigned D2, class E2, class A2>
+struct is_explicitly_convertible<cpp_dec_float<D1, E1, A1>, cpp_dec_float<D2, E2, A2> > : public mpl::true_
+{};
-}
+} // namespace detail
#endif
+}} // namespace boost::multiprecision
-}}
-
-namespace std
+namespace std {
+template <unsigned Digits10, class ExponentType, class Allocator, boost::multiprecision::expression_template_option ExpressionTemplates>
+class numeric_limits<boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> >
{
- template <unsigned Digits10, class ExponentType, class Allocator, boost::multiprecision::expression_template_option ExpressionTemplates>
- class numeric_limits<boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> >
- {
- public:
- BOOST_STATIC_CONSTEXPR bool is_specialized = true;
- BOOST_STATIC_CONSTEXPR bool is_signed = true;
- BOOST_STATIC_CONSTEXPR bool is_integer = false;
- BOOST_STATIC_CONSTEXPR bool is_exact = false;
- BOOST_STATIC_CONSTEXPR bool is_bounded = true;
- BOOST_STATIC_CONSTEXPR bool is_modulo = false;
- BOOST_STATIC_CONSTEXPR bool is_iec559 = false;
- BOOST_STATIC_CONSTEXPR int digits = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_digits10;
- BOOST_STATIC_CONSTEXPR int digits10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_digits10;
- BOOST_STATIC_CONSTEXPR int max_digits10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_total_digits10;
- BOOST_STATIC_CONSTEXPR ExponentType min_exponent = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_min_exp; // Type differs from int.
- BOOST_STATIC_CONSTEXPR ExponentType min_exponent10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_min_exp10; // Type differs from int.
- BOOST_STATIC_CONSTEXPR ExponentType max_exponent = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_max_exp; // Type differs from int.
- BOOST_STATIC_CONSTEXPR ExponentType max_exponent10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_max_exp10; // Type differs from int.
- BOOST_STATIC_CONSTEXPR int radix = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_radix;
- BOOST_STATIC_CONSTEXPR std::float_round_style round_style = std::round_indeterminate;
- BOOST_STATIC_CONSTEXPR bool has_infinity = true;
- BOOST_STATIC_CONSTEXPR bool has_quiet_NaN = true;
- BOOST_STATIC_CONSTEXPR bool has_signaling_NaN = false;
- BOOST_STATIC_CONSTEXPR std::float_denorm_style has_denorm = std::denorm_absent;
- BOOST_STATIC_CONSTEXPR bool has_denorm_loss = false;
- BOOST_STATIC_CONSTEXPR bool traps = false;
- BOOST_STATIC_CONSTEXPR bool tinyness_before = false;
-
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> (min) () { return (boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::min)(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> (max) () { return (boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::max)(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> lowest () { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> epsilon () { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::eps(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> round_error () { return 0.5L; }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> infinity () { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::inf(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> quiet_NaN () { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::nan(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> signaling_NaN() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
- BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> denorm_min () { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
- };
+ public:
+ BOOST_STATIC_CONSTEXPR bool is_specialized = true;
+ BOOST_STATIC_CONSTEXPR bool is_signed = true;
+ BOOST_STATIC_CONSTEXPR bool is_integer = false;
+ BOOST_STATIC_CONSTEXPR bool is_exact = false;
+ BOOST_STATIC_CONSTEXPR bool is_bounded = true;
+ BOOST_STATIC_CONSTEXPR bool is_modulo = false;
+ BOOST_STATIC_CONSTEXPR bool is_iec559 = false;
+ BOOST_STATIC_CONSTEXPR int digits = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_digits10;
+ BOOST_STATIC_CONSTEXPR int digits10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_digits10;
+ BOOST_STATIC_CONSTEXPR int max_digits10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_total_digits10;
+ BOOST_STATIC_CONSTEXPR ExponentType min_exponent = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_min_exp; // Type differs from int.
+ BOOST_STATIC_CONSTEXPR ExponentType min_exponent10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_min_exp10; // Type differs from int.
+ BOOST_STATIC_CONSTEXPR ExponentType max_exponent = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_max_exp; // Type differs from int.
+ BOOST_STATIC_CONSTEXPR ExponentType max_exponent10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_max_exp10; // Type differs from int.
+ BOOST_STATIC_CONSTEXPR int radix = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_radix;
+ BOOST_STATIC_CONSTEXPR std::float_round_style round_style = std::round_indeterminate;
+ BOOST_STATIC_CONSTEXPR bool has_infinity = true;
+ BOOST_STATIC_CONSTEXPR bool has_quiet_NaN = true;
+ BOOST_STATIC_CONSTEXPR bool has_signaling_NaN = false;
+ BOOST_STATIC_CONSTEXPR std::float_denorm_style has_denorm = std::denorm_absent;
+ BOOST_STATIC_CONSTEXPR bool has_denorm_loss = false;
+ BOOST_STATIC_CONSTEXPR bool traps = false;
+ BOOST_STATIC_CONSTEXPR bool tinyness_before = false;
+
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates>(min)() { return (boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::min)(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates>(max)() { return (boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::max)(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> lowest() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> epsilon() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::eps(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> round_error() { return 0.5L; }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> infinity() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::inf(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> quiet_NaN() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::nan(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> signaling_NaN() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
+ BOOST_STATIC_CONSTEXPR boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> denorm_min() { return boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::zero(); }
+};
#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
BOOST_CONSTEXPR_OR_CONST float_round_style numeric_limits<boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates> >::round_style;
#endif
-}
+} // namespace std
-namespace boost{ namespace math{
+namespace boost {
+namespace math {
-namespace policies{
+namespace policies {
template <unsigned Digits10, class ExponentType, class Allocator, class Policy, boost::multiprecision::expression_template_option ExpressionTemplates>
-struct precision< boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates>, Policy>
+struct precision<boost::multiprecision::number<boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>, ExpressionTemplates>, Policy>
{
// Define a local copy of cpp_dec_float_digits10 because it might differ
// from the template parameter Digits10 for small or large digit counts.
static const boost::int32_t cpp_dec_float_digits10 = boost::multiprecision::cpp_dec_float<Digits10, ExponentType, Allocator>::cpp_dec_float_digits10;
- typedef typename Policy::precision_type precision_type;
+ typedef typename Policy::precision_type precision_type;
typedef digits2<((cpp_dec_float_digits10 + 1LL) * 1000LL) / 301LL> digits_2;
typedef typename mpl::if_c<
- ((digits_2::value <= precision_type::value)
- || (Policy::precision_type::value <= 0)),
- // Default case, full precision for RealType:
- digits_2,
- // User customized precision:
- precision_type
- >::type type;
+ ((digits_2::value <= precision_type::value) || (Policy::precision_type::value <= 0)),
+ // Default case, full precision for RealType:
+ digits_2,
+ // User customized precision:
+ precision_type>::type type;
};
-} // namespace policies
+}
-}} // namespaces boost::math
+}} // namespace boost::math::policies
#ifdef BOOST_MSVC
#pragma warning(pop)
projects / platform / upstream / boost.git / blobdiff