71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
// (C) Copyright John Maddock 2019.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include "constexpr_arithmetric_test.hpp"
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#include <boost/multiprecision/float128.hpp>
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#include <iostream>
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int main()
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{
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using boost::multiprecision::float128;
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{
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constexpr float128 a(22);
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constexpr float128 b = test_constexpr_add_subtract(a);
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constexpr __float128 f128 = (__float128)b;
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static_assert(f128 == -134.0f);
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constexpr int i = (int)b;
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static_assert(i == -134);
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constexpr short s = (short)b;
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static_assert(s == -134);
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}
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{
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constexpr float128 a(22);
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constexpr float128 b = test_constexpr_mul_divide(a);
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static_assert((__float128)b == 0);
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}
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{
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constexpr float128 a(22);
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constexpr float128 b = test_constexpr_compare(a);
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static_assert((__float128)b == 119);
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}
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{
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constexpr float128 a(0);
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static_assert(fpclassify(a) == FP_ZERO);
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constexpr float128 b(1);
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static_assert(fpclassify(b) == FP_NORMAL);
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constexpr float128 c(-1);
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static_assert(fpclassify(c) == FP_NORMAL);
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static_assert(abs(c) >= 0);
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static_assert(fabs(c) >= 0);
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constexpr float128 d(std::numeric_limits<float128>::epsilon());
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static_assert(fpclassify(c) == FP_NORMAL);
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constexpr float128 e((std::numeric_limits<float128>::min)());
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static_assert(fpclassify(e) == FP_NORMAL);
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constexpr float128 f((std::numeric_limits<float128>::max)());
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static_assert(fpclassify(f) == FP_NORMAL);
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constexpr float128 g(std::numeric_limits<float128>::lowest());
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static_assert(fpclassify(g) == FP_NORMAL);
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constexpr float128 h(std::numeric_limits<float128>::round_error());
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static_assert(fpclassify(h) == FP_NORMAL);
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constexpr float128 i(std::numeric_limits<float128>::denorm_min());
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static_assert(fpclassify(i) == FP_SUBNORMAL);
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constexpr float128 j(-std::numeric_limits<float128>::denorm_min());
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static_assert(fpclassify(j) == FP_SUBNORMAL);
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constexpr float128 k(std::numeric_limits<float128>::infinity());
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static_assert(fpclassify(k) == FP_INFINITE);
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static_assert(isinf(k));
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static_assert(!isnan(k));
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constexpr float128 l(-std::numeric_limits<float128>::infinity());
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static_assert(fpclassify(l) == FP_INFINITE);
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static_assert(isinf(l));
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static_assert(!isnan(l));
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}
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std::cout << "Done!" << std::endl;
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}
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