25 lines · cpp
1//===-- Implementation of roundeven 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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/math/roundeven.h"10#include "src/__support/FPUtil/NearestIntegerOperations.h"11#include "src/__support/common.h"12#include "src/__support/macros/config.h"13 14namespace LIBC_NAMESPACE_DECL {15 16LLVM_LIBC_FUNCTION(double, roundeven, (double x)) {17#ifdef __LIBC_USE_BUILTIN_ROUNDEVEN18 return __builtin_roundeven(x);19#else20 return fputil::round_using_specific_rounding_mode(x, FP_INT_TONEAREST);21#endif22}23 24} // namespace LIBC_NAMESPACE_DECL25