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Sourcecode: mingw-w64 version File versions  Download package

 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the w64 mingw-runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
#include <math.h>

00008 typedef union U
  unsigned int u[2];
  double d;
} U;

double copysign(double x, double y)
  U h,j;
  h.d = x;
  j.d = y;
  h.u[1] = (h.u[1] & 0x7fffffff) | (j.u[1] & 0x80000000);
  return h.d;

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