1 /* Copyright (C) 2002,2007 by  Red Hat, Incorporated. All rights reserved.
2  *
3  * Permission to use, copy, modify, and distribute this software
4  * is freely granted, provided that this notice is preserved.
5  */
6 
7 #include "fdlibm.h"
8 
9 int
__fpclassifyf(float x)10 __fpclassifyf (float x)
11 {
12   __uint32_t w;
13 
14   GET_FLOAT_WORD(w,x);
15 
16   if (w == 0x00000000 || w == 0x80000000)
17     return FP_ZERO;
18   else if ((w >= 0x00800000 && w <= 0x7f7fffff) ||
19            (w >= 0x80800000 && w <= 0xff7fffff))
20     return FP_NORMAL;
21   else if ((w >= 0x00000001 && w <= 0x007fffff) ||
22            (w >= 0x80000001 && w <= 0x807fffff))
23     return FP_SUBNORMAL;
24   else if (w == 0x7f800000 || w == 0xff800000)
25     return FP_INFINITE;
26   else
27     return FP_NAN;
28 }
29 
30