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// Copyright 2020 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
#include <math.h>
#include "pw_polyfill/standard_library/namespace.h"
_PW_POLYFILL_BEGIN_NAMESPACE_STD
// The integer overloads of these functions are not provided.
// This is not technically correct, but avoids ambiguous calls to an overloaded
// abs function.
template <typename T>
inline T abs(T value) {
return value < 0 ? -value : value;
}
#ifdef isfinite
#undef isfinite
#endif // isfinite
inline bool isfinite(float value) { return __builtin_isfinite(value); }
inline bool isfinite(double value) { return __builtin_isfinite(value); }
inline bool isfinite(long double value) { return __builtin_isfinite(value); }
#ifdef isnan
#undef isnan
#endif // isnan
inline bool isnan(float value) { return __builtin_isnan(value); }
inline bool isnan(double value) { return __builtin_isnan(value); }
inline bool isnan(long double value) { return __builtin_isnan(value); }
#ifdef signbit
#undef signbit
#endif // signbit
inline bool signbit(float value) { return __builtin_signbit(value); }
inline bool signbit(double value) { return __builtin_signbit(value); }
inline bool signbit(long double value) { return __builtin_signbit(value); }
using ::round;
_PW_POLYFILL_END_NAMESPACE_STD
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