1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
/* Copyright (C) 2002,2007 by Red Hat, Incorporated. All rights reserved.
*
* Permission to use, copy, modify, and distribute this software
* is freely granted, provided that this notice is preserved.
*/
#define _ADD_D_TO_DOUBLE_FUNCS
#include "fdlibm.h"
int
__fpclassifyf (float x)
{
__uint32_t w;
GET_FLOAT_WORD(w,x);
if (w == 0x00000000 || w == 0x80000000)
return FP_ZERO;
else if ((w >= 0x00800000 && w <= 0x7f7fffff) ||
(w >= 0x80800000 && w <= 0xff7fffff))
return FP_NORMAL;
else if ((w >= 0x00000001 && w <= 0x007fffff) ||
(w >= 0x80000001 && w <= 0x807fffff))
return FP_SUBNORMAL;
else if (w == 0x7f800000 || w == 0xff800000)
return FP_INFINITE;
else
return FP_NAN;
}
_MATH_ALIAS_i_f(__fpclassify)
|
