_chgsignf.c File Reference

#include "libm.h"
#include "libm_util.h"

Include dependency graph for _chgsignf.c:

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Functions
float FN_PROTOTYPE()	_chgsignf (float x)

Function Documentation

_chgsignf()

float FN_PROTOTYPE() _chgsignf

(

float

x

)

Definition at line 30 of file _chgsignf.c.

{
  /* Returns x with its sign reversed.
     NaNs are not considered special; their sign bits are handled
     the same as for any other number */
  unsigned int u;
  GET_BITS_SP32(x, u);
  u ^= SIGNBIT_SP32;
  PUT_BITS_SP32(u, x);
  return x;
}