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//===-- TestMatchers.cpp ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "FPMatcher.h"
#include "src/__support/FPUtil/FPBits.h"
#include "utils/UnitTest/StringUtils.h"
#include <sstream>
#include <string>
namespace __llvm_libc {
namespace fputil {
namespace testing {
template <typename ValType, typename StreamType>
cpp::EnableIfType<cpp::IsFloatingPointType<ValType>::Value, void>
describeValue(const char *label, ValType value, StreamType &stream) {
stream << label;
FPBits<ValType> bits(value);
if (bits.is_nan()) {
stream << "(NaN)";
} else if (bits.is_inf()) {
if (bits.get_sign())
stream << "(-Infinity)";
else
stream << "(+Infinity)";
} else {
constexpr int exponentWidthInHex =
(fputil::ExponentWidth<ValType>::VALUE - 1) / 4 + 1;
constexpr int mantissaWidthInHex =
(fputil::MantissaWidth<ValType>::VALUE - 1) / 4 + 1;
constexpr int bitsWidthInHex =
sizeof(typename fputil::FPBits<ValType>::UIntType) * 2;
stream << "0x"
<< int_to_hex<typename fputil::FPBits<ValType>::UIntType>(
bits.uintval(), bitsWidthInHex)
<< ", (S | E | M) = (" << (bits.get_sign() ? '1' : '0') << " | 0x"
<< int_to_hex<uint16_t>(bits.get_unbiased_exponent(),
exponentWidthInHex)
<< " | 0x"
<< int_to_hex<typename fputil::FPBits<ValType>::UIntType>(
bits.get_mantissa(), mantissaWidthInHex)
<< ")";
}
stream << '\n';
}
template void describeValue<float>(const char *, float,
testutils::StreamWrapper &);
template void describeValue<double>(const char *, double,
testutils::StreamWrapper &);
template void describeValue<long double>(const char *, long double,
testutils::StreamWrapper &);
template void describeValue<float>(const char *, float, std::stringstream &);
template void describeValue<double>(const char *, double, std::stringstream &);
template void describeValue<long double>(const char *, long double,
std::stringstream &);
} // namespace testing
} // namespace fputil
} // namespace __llvm_libc
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