Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3362 | Serge | 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 |
||
| 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 |