logb.c File Reference

#include <precomp.h>

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Functions
double	_logb (double __x)

Function Documentation

_logb()

double _logb

(

double

__x

)

Definition at line 24 of file logb.c.

{
  register double __val;
#ifdef __GNUC__
  register double __junk;
  __asm __volatile__
    ("fxtract\n\t"
     : "=t" (__junk), "=u" (__val) : "0" (__x));
#else
#pragma message ("REVIEW ME")
  __asm fld [__x];
  __asm fxtract;
  __asm fstp st(0);
  __asm fstp [__val];
#endif /*__GNUC__*/
  return __val;
}