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Merge branch 'develop' into finish_loose_ends_for_180

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This commit is contained in:
Christopher Kormanyos
2022-06-18 07:46:58 +02:00
parent 45791bf36d 7e677e83eb
commit f66e7d54bb
5 changed files with 30 additions and 9 deletions
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16
include/boost/multiprecision/detail/float128_functions.hpp
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@@ -11,7 +11,14 @@
#include <boost/multiprecision/detail/standalone_config.hpp>
#ifdef BOOST_HAS_FLOAT128
#ifndef BOOST_MP_STANDALONE
#include <boost/cstdfloat.hpp>
#if defined(BOOST_MATH_USE_FLOAT128) && !defined(BOOST_CSTDFLOAT_NO_LIBQUADMATH_SUPPORT)
# define BOOST_MP_HAVE_CSTDFLOAT
#endif
#endif
#if defined(BOOST_HAS_FLOAT128)
namespace boost
{
@@ -27,10 +34,15 @@ extern "C" int isinfq(__float128) throw();
extern "C" int isnanq(__float128) throw();
extern "C" __float128 strtoflt128(const char*, char**) throw();
#ifdef BOOST_MP_HAVE_CSTDFLOAT
using std::ldexp;
using std::frexp;
using std::floor;
#else
inline __float128 ldexp(__float128 f, int i) throw() { return ldexpq(f, i); }
inline __float128 frexp(__float128 f, int* p) throw() { return frexpq(f, p); }
inline __float128 floor(__float128 f) throw() { return floorq(f); }
#endif
}
namespace detail {

3
include/boost/multiprecision/float128.hpp
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@@ -16,7 +16,10 @@
#endif
#include <memory>
#include <climits>
#include <cfloat>
#include <tuple>
#include <cstring>
#include <boost/multiprecision/detail/standalone_config.hpp>
#include <boost/multiprecision/number.hpp>
#include <boost/multiprecision/detail/hash.hpp>

12
test/constexpr_arithmetric_test.hpp
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@@ -9,11 +9,17 @@
// clang-format off
#ifdef BOOST_HAS_FLOAT128
#define OR_IS_FLOAT128 || std::is_same<__float128, U>::value
#else
#define OR_IS_FLOAT128
#endif
template <class T, class U>
BOOST_CXX14_CONSTEXPR T do_test_constexpr_add_subtract(T a, U b)
{
a = +b;
if constexpr(std::numeric_limits<U>::is_signed && std::numeric_limits<T>::is_signed)
if constexpr((std::numeric_limits<U>::is_signed OR_IS_FLOAT128) && std::numeric_limits<T>::is_signed)
b = -b;
a += b;
a += a;
@@ -26,13 +32,13 @@ BOOST_CXX14_CONSTEXPR T do_test_constexpr_add_subtract(T a, U b)
a += bb--;
a = a + b;
a += a - b;
if constexpr(std::numeric_limits<U>::is_signed && std::numeric_limits<T>::is_signed)
if constexpr((std::numeric_limits<U>::is_signed OR_IS_FLOAT128) && std::numeric_limits<T>::is_signed)
a -= b - -a;
a += b + a;
if constexpr(std::numeric_limits<T>::is_signed)
{
a = -a;
if constexpr(std::numeric_limits<U>::is_signed)
if constexpr(std::numeric_limits<U>::is_signed OR_IS_FLOAT128)
a -= b;
}
return a;

6
test/constexpr_test_float128.cpp
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@@ -16,13 +16,13 @@ int main()
constexpr float128 b = test_constexpr_add_subtract(a);
constexpr __float128 f128 = (__float128)b;
static_assert(f128 == -134.0f);
static_assert(f128 == -108.0f);
constexpr int i = (int)b;
static_assert(i == -134);
static_assert(i == -108);
constexpr short s = (short)b;
static_assert(s == -134);
static_assert(s == -108);
}
{
constexpr float128 a(22);

2
test/test.hpp
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@@ -167,7 +167,7 @@ std::ostream& operator<<(std::ostream& os, unsigned __int128 val)
}
#endif
#ifdef BOOST_HAS_FLOAT128
#if defined(BOOST_HAS_FLOAT128) && !defined(BOOST_MP_HAVE_CSTDFLOAT)
std::ostream& operator<<(std::ostream& os, __float128 f)
{
return os << static_cast<long double>(f);