// #8065: Multiprecision rounding issue
#ifdef _MSC_VER
-# define _SCL_SECURE_NO_WARNINGS
+#define _SCL_SECURE_NO_WARNINGS
#endif
#include <boost/detail/lightweight_test.hpp>
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/math/special_functions/round.hpp>
-template<int N>
+template <int N>
static bool round_test_imp()
{
- typedef boost::multiprecision::cpp_dec_float<N> mp_backend_type;
- typedef boost::multiprecision::number<mp_backend_type, boost::multiprecision::et_off> mp_type;
+ typedef boost::multiprecision::cpp_dec_float<N> mp_backend_type;
+ typedef boost::multiprecision::number<mp_backend_type, boost::multiprecision::et_off> mp_type;
- const mp_type original_digits(1.0F);
+ const mp_type original_digits(1.0F);
- const mp_type scale = pow(mp_type(10), N);
+ const mp_type scale = pow(mp_type(10), N);
- mp_type these_digits = original_digits * scale;
+ mp_type these_digits = original_digits * scale;
- these_digits = boost::math::round(these_digits);
- these_digits /= scale;
+ these_digits = boost::math::round(these_digits);
+ these_digits /= scale;
- const std::string result = these_digits.str();
+ const std::string result = these_digits.str();
- return (result == original_digits.str());
+ return (result == original_digits.str());
}
-template<int N>
+template <int N>
struct round_test
{
- static bool test()
- {
- return (round_test_imp<N>() && round_test<N - 1>::test());
- }
+ static bool test()
+ {
+ return (round_test_imp<N>() && round_test<N - 1>::test());
+ }
};
-template<>
+template <>
struct round_test<0>
{
- static bool test()
- {
- return round_test_imp<0>();
- }
+ static bool test()
+ {
+ return round_test_imp<0>();
+ }
};
int main()