1//===-- Implementation of copysign function -------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/math/copysign.h"
10#include "src/__support/FPUtil/ManipulationFunctions.h"
11#include "src/__support/common.h"
12#include "src/__support/macros/config.h"
13
14namespace LIBC_NAMESPACE_DECL {
15
16LLVM_LIBC_FUNCTION(double, copysign, (double x, double y)) {
17#ifdef __LIBC_MISC_MATH_BASIC_OPS_OPT
18 return __builtin_copysign(x, y);
19#else
20 return fputil::copysign(x, y);
21#endif
22}
23
24} // namespace LIBC_NAMESPACE_DECL
25

source code of libc/src/math/generic/copysign.cpp