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41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
// Copyright 2024 Matt Borland
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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//
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// See: https://github.com/cppalliance/charconv/issues/156
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#include <boost/charconv.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <random>
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#include <iostream>
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#ifdef BOOST_CHARCONV_HAS_BRAINFLOAT16
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int main()
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{
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std::mt19937_64 rng(42);
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std::uniform_real_distribution<float> dist (1e10F, 1e12F);
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for (int i = 0; i < 1024; ++i)
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{
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char buffer[256] {};
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auto val = static_cast<std::bfloat16_t>(dist(rng));
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auto r = boost::charconv::to_chars(buffer, buffer + sizeof(buffer), val, boost::charconv::chars_format::scientific);
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if (!(BOOST_TEST(r) && BOOST_TEST(std::strlen(buffer) <= 9))) // 4 digits prec + period + e+ + 2 digits of exp
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{
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std::cerr << "Incorrect for: " << val << " returned: " << buffer << std::endl; // LCOV_EXCL_LINE
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}
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}
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return boost::report_errors();
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}
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#else
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int main()
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{
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return 0;
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}
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#endif
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