1/**
 2 * This file has no copyright assigned and is placed in the Public Domain.
 3 * This file is part of the mingw-w64 runtime package.
 4 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 5 */
 6#define __FP_SIGNBIT  0x0200
 7int __signbitf (float x);
 8
 9typedef union __mingw_flt_type_t {
10  float x;
11  unsigned int val;
12} __mingw_flt_type_t;
13
14int __signbitf (float x)
15{
16#if defined(__x86_64__) || defined(_AMD64_) || defined(__arm__) || defined(_ARM_) || defined(__aarch64__) || defined(_ARM64_)
17    __mingw_flt_type_t hlp;
18    hlp.x = x;
19    return ((hlp.val & 0x80000000) != 0);
20#elif defined(__i386__) || defined(_X86_)
21  unsigned short sw;
22  __asm__ __volatile__ ("fxam; fstsw %%ax;"
23	   : "=a" (sw)
24	   : "t" (x) );
25  return (sw & __FP_SIGNBIT) != 0;
26#endif
27}
28int __attribute__ ((alias ("__signbitf"))) signbitf (float);