libc/src/complex/generic/creal.cpp

   1 //===-- Implementation of creal 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/complex/creal.h"
  10 #include "src/__support/CPP/bit.h"
  11 #include "src/__support/common.h"
  12 #include "src/__support/complex_type.h"
  13
  14 namespace LIBC_NAMESPACE_DECL {
  15
  16 LLVM_LIBC_FUNCTION(double, creal, (_Complex double x)) {
  17   Complex<double> x_c = cpp::bit_cast<Complex<double>>(x);
  18   return x_c.real;
  19 }
  20
  21 } // namespace LIBC_NAMESPACE_DECL