#ifndef BOOST_MP_CPP_INT_MUL_HPP
#define BOOST_MP_CPP_INT_MUL_HPP
-namespace boost{ namespace multiprecision{ namespace backends{
+namespace boost { namespace multiprecision { namespace backends {
#ifdef _MSC_VER
#pragma warning(push)
-#pragma warning(disable:4127) // conditional expression is constant
+#pragma warning(disable : 4127) // conditional expression is constant
#endif
-
- template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+
+template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
+inline BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
+ const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
- if(!val)
+ if (!val)
{
result = static_cast<limb_type>(0);
return;
}
- if((void*)&a != (void*)&result)
+ if ((void*)&a != (void*)&result)
result.resize(a.size(), a.size());
- double_limb_type carry = 0;
- typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer p = result.limbs();
- typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer pe = result.limbs() + result.size();
- typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer pa = a.limbs();
- while(p != pe)
+ double_limb_type carry = 0;
+ typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer p = result.limbs();
+ typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer pe = result.limbs() + result.size();
+ typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer pa = a.limbs();
+ while (p != pe)
{
carry += static_cast<double_limb_type>(*pa) * static_cast<double_limb_type>(val);
#ifdef __MSVC_RUNTIME_CHECKS
carry >>= cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_bits;
++p, ++pa;
}
- if(carry)
+ if (carry)
{
unsigned i = result.size();
result.resize(i + 1, i + 1);
- if(result.size() > i)
+ if (result.size() > i)
result.limbs()[i] = static_cast<limb_type>(carry);
}
result.sign(a.sign());
- if(!cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::variable)
+ if (!cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::variable)
result.normalize();
}
// This will cause an overflow error inside resize():
//
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-inline void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& /*result*/, unsigned /*required*/){}
+inline BOOST_MP_CXX14_CONSTEXPR void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& /*result*/, unsigned /*required*/) {}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, class Allocator1>
-inline void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, checked, Allocator1>& result, unsigned required)
+inline BOOST_MP_CXX14_CONSTEXPR void resize_for_carry(cpp_int_backend<MinBits1, MaxBits1, SignType1, checked, Allocator1>& result, unsigned required)
{
- if(result.size() < required)
+ if (result.size() < required)
result.resize(required, required);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2, unsigned MinBits3, unsigned MaxBits3, cpp_integer_type SignType3, cpp_int_check_type Checked3, class Allocator3>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+inline BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
+ const cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
// Very simple long multiplication, only usable for small numbers of limb_type's
// but that's the typical use case for this type anyway:
//
// Special cases first:
//
- unsigned as = a.size();
- unsigned bs = b.size();
+ unsigned as = a.size();
+ unsigned bs = b.size();
typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::const_limb_pointer pa = a.limbs();
typename cpp_int_backend<MinBits3, MaxBits3, SignType3, Checked3, Allocator3>::const_limb_pointer pb = b.limbs();
- if(as == 1)
+ if (as == 1)
{
bool s = b.sign() != a.sign();
- if(bs == 1)
+ if (bs == 1)
{
result = static_cast<double_limb_type>(*pa) * static_cast<double_limb_type>(*pb);
}
result.sign(s);
return;
}
- if(bs == 1)
+ if (bs == 1)
{
- bool s = b.sign() != a.sign();
+ bool s = b.sign() != a.sign();
limb_type l = *pb;
eval_multiply(result, a, l);
result.sign(s);
return;
}
- if((void*)&result == (void*)&a)
+ if ((void*)&result == (void*)&a)
{
cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(a);
eval_multiply(result, t, b);
return;
}
- if((void*)&result == (void*)&b)
+ if ((void*)&result == (void*)&b)
{
cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> t(b);
eval_multiply(result, a, t);
result.resize(as + bs, as + bs - 1);
typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_pointer pr = result.limbs();
-
- static const double_limb_type limb_max = ~static_cast<limb_type>(0u);
+#ifdef BOOST_NO_CXX14_CONSTEXPR
+ static const double_limb_type limb_max = ~static_cast<limb_type>(0u);
static const double_limb_type double_limb_max = ~static_cast<double_limb_type>(0u);
+#else
+ constexpr const double_limb_type limb_max = ~static_cast<limb_type>(0u);
+ constexpr const double_limb_type double_limb_max = ~static_cast<double_limb_type>(0u);
+#endif
BOOST_STATIC_ASSERT(double_limb_max - 2 * limb_max >= limb_max * limb_max);
double_limb_type carry = 0;
+#ifndef BOOST_MP_NO_CONSTEXPR_DETECTION
+ if (BOOST_MP_IS_CONST_EVALUATED(as))
+ {
+ for (unsigned i = 0; i < result.size(); ++i)
+ pr[i] = 0;
+ }
+ else
+#endif
std::memset(pr, 0, result.size() * sizeof(limb_type));
- for(unsigned i = 0; i < as; ++i)
+ for (unsigned i = 0; i < as; ++i)
{
unsigned inner_limit = cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::variable ? bs : (std::min)(result.size() - i, bs);
- unsigned j;
- for(j = 0; j < inner_limit; ++j)
+ unsigned j = 0;
+ for (; j < inner_limit; ++j)
{
- BOOST_ASSERT(i+j < result.size());
+ BOOST_ASSERT(i + j < result.size());
#if (!defined(__GLIBCXX__) && !defined(__GLIBCPP__)) || !BOOST_WORKAROUND(BOOST_GCC_VERSION, <= 50100)
- BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized
- || ((std::numeric_limits<double_limb_type>::max)() - carry
- >
- static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value) * static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value)));
+ BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized || ((std::numeric_limits<double_limb_type>::max)() - carry >
+ static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value) * static_cast<double_limb_type>(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value)));
#endif
carry += static_cast<double_limb_type>(pa[i]) * static_cast<double_limb_type>(pb[j]);
- BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized || ((std::numeric_limits<double_limb_type>::max)() - carry >= pr[i+j]));
+ BOOST_ASSERT(!std::numeric_limits<double_limb_type>::is_specialized || ((std::numeric_limits<double_limb_type>::max)() - carry >= pr[i + j]));
carry += pr[i + j];
#ifdef __MSVC_RUNTIME_CHECKS
pr[i + j] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
carry >>= cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::limb_bits;
BOOST_ASSERT(carry <= (cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::max_limb_value));
}
- if(carry)
+ if (carry)
{
- resize_for_carry(result, i + j + 1); // May throw if checking is enabled
- if(i + j < result.size())
+ resize_for_carry(result, i + j + 1); // May throw if checking is enabled
+ if (i + j < result.size())
#ifdef __MSVC_RUNTIME_CHECKS
pr[i + j] = static_cast<limb_type>(carry & ~static_cast<limb_type>(0));
#else
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
- eval_multiply(result, result, a);
+ eval_multiply(result, result, a);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
eval_multiply(result, result, val);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
+ const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
- if(val <= (std::numeric_limits<limb_type>::max)())
+ if (val <= (std::numeric_limits<limb_type>::max)())
{
eval_multiply(result, a, static_cast<limb_type>(val));
}
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
eval_multiply(result, result, val);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
+ const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
- if(val > 0)
+ if (val > 0)
eval_multiply(result, a, static_cast<limb_type>(val));
else
{
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
eval_multiply(result, result, val);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
- const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+inline BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && !is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>& a,
+ const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
- if(val > 0)
+ if (val > 0)
{
- if(val <= (std::numeric_limits<limb_type>::max)())
+ if (val <= (std::numeric_limits<limb_type>::max)())
{
eval_multiply(result, a, static_cast<limb_type>(val));
return;
}
}
- else if(val >= -static_cast<signed_double_limb_type>((std::numeric_limits<limb_type>::max)()))
+ else if (val >= -static_cast<signed_double_limb_type>((std::numeric_limits<limb_type>::max)()))
{
eval_multiply(result, a, static_cast<limb_type>(boost::multiprecision::detail::unsigned_abs(val)));
result.negate();
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
- eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result, const signed_double_limb_type& val) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
eval_multiply(result, result, val);
}
// Now over again for trivial cpp_int's:
//
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
*result.limbs() = detail::checked_multiply(*result.limbs(), *o.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
result.sign(result.sign() != o.sign());
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& o) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
*result.limbs() = detail::checked_multiply(*result.limbs(), *o.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
result.normalize();
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && (is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value || is_signed_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
*result.limbs() = detail::checked_multiply(*a.limbs(), *b.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
result.sign(a.sign() != b.sign());
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
- const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && is_unsigned_number<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
+ const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b) BOOST_MP_NOEXCEPT_IF((is_non_throwing_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value))
{
*result.limbs() = detail::checked_multiply(*a.limbs(), *b.limbs(), typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::checked_type());
result.normalize();
// Special routines for multiplying two integers to obtain a multiprecision result:
//
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- signed_double_limb_type a, signed_double_limb_type b)
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ signed_double_limb_type a, signed_double_limb_type b)
{
- static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
- static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
- bool s = false;
- double_limb_type w, x, y, z;
- if(a < 0)
+#ifdef BOOST_NO_CXX14_CONSTEXPR
+ static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
+ static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
+#else
+ constexpr const signed_double_limb_type mask = ~static_cast<limb_type>(0);
+ constexpr const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
+#endif
+ bool s = false;
+ if (a < 0)
{
a = -a;
s = true;
}
- if(b < 0)
+ if (b < 0)
{
b = -b;
s = !s;
}
- w = a & mask;
- x = a >> limb_bits;
- y = b & mask;
- z = b >> limb_bits;
+ double_limb_type w = a & mask;
+ double_limb_type x = a >> limb_bits;
+ double_limb_type y = b & mask;
+ double_limb_type z = b >> limb_bits;
result.resize(4, 4);
limb_type* pr = result.limbs();
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- double_limb_type a, double_limb_type b)
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ double_limb_type a, double_limb_type b)
{
- static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
- static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
+#ifdef BOOST_NO_CXX14_CONSTEXPR
+ static const signed_double_limb_type mask = ~static_cast<limb_type>(0);
+ static const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
+#else
+ constexpr const signed_double_limb_type mask = ~static_cast<limb_type>(0);
+ constexpr const unsigned limb_bits = sizeof(limb_type) * CHAR_BIT;
+#endif
- double_limb_type w, x, y, z;
- w = a & mask;
- x = a >> limb_bits;
- y = b & mask;
- z = b >> limb_bits;
+ double_limb_type w = a & mask;
+ double_limb_type x = a >> limb_bits;
+ double_limb_type y = b & mask;
+ double_limb_type z = b >> limb_bits;
result.resize(4, 4);
limb_type* pr = result.limbs();
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1,
unsigned MinBits2, unsigned MaxBits2, cpp_integer_type SignType2, cpp_int_check_type Checked2, class Allocator2>
-BOOST_MP_FORCEINLINE typename enable_if_c<
- !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value
- && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value
- >::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& a,
- cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& b)
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<
+ !is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value && is_trivial_cpp_int<cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> >::value>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& a,
+ cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2> const& b)
{
typedef typename boost::multiprecision::detail::canonical<typename cpp_int_backend<MinBits2, MaxBits2, SignType2, Checked2, Allocator2>::local_limb_type, cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::type canonical_type;
eval_multiply(result, static_cast<canonical_type>(*a.limbs()), static_cast<canonical_type>(*b.limbs()));
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, class SI>
-BOOST_MP_FORCEINLINE typename enable_if_c<is_signed<SI>::value && (sizeof(SI) <= sizeof(signed_double_limb_type) / 2)>::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- SI a, SI b)
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<is_signed<SI>::value && (sizeof(SI) <= sizeof(signed_double_limb_type) / 2)>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ SI a, SI b)
{
result = static_cast<signed_double_limb_type>(a) * static_cast<signed_double_limb_type>(b);
}
template <unsigned MinBits1, unsigned MaxBits1, cpp_integer_type SignType1, cpp_int_check_type Checked1, class Allocator1, class UI>
-BOOST_MP_FORCEINLINE typename enable_if_c<is_unsigned<UI>::value && (sizeof(UI) <= sizeof(signed_double_limb_type) / 2)>::type
- eval_multiply(
- cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
- UI a, UI b)
+BOOST_MP_FORCEINLINE BOOST_MP_CXX14_CONSTEXPR typename enable_if_c<is_unsigned<UI>::value && (sizeof(UI) <= sizeof(signed_double_limb_type) / 2)>::type
+eval_multiply(
+ cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
+ UI a, UI b)
{
result = static_cast<double_limb_type>(a) * static_cast<double_limb_type>(b);
}
#pragma warning(pop)
#endif
-}}} // namespaces
+}}} // namespace boost::multiprecision::backends
#endif
projects / platform / upstream / boost.git / blobdiff