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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.
#define __FP_SIGNBIT  0x0200

int __signbit (double x);

int __signbit (double x) {
  unsigned short sw;
  __asm__ __volatile__ ("fxam; fstsw %%ax;"
         : "=a" (sw)
         : "t" (x) );
  return (sw & __FP_SIGNBIT) != 0;

#undef signbit
int __attribute__ ((alias ("__signbit"))) signbit (double);

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