Rev 4872 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * __isinfd(x) returns 1 if x is infinity, else 0; |
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| 3 | * no branching! |
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| 4 | * Added by Cygnus Support. |
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| 5 | */ |
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| 6 | |||
| 7 | #include "fdlibm.h" |
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| 8 | |||
| 9 | #ifndef _DOUBLE_IS_32BITS |
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| 10 | |||
| 11 | int |
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| 12 | _DEFUN (__isinfd, (x), |
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| 13 | double x) |
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| 14 | { |
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| 15 | __int32_t hx,lx; |
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| 16 | EXTRACT_WORDS(hx,lx,x); |
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| 17 | hx &= 0x7fffffff; |
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| 18 | hx |= (__uint32_t)(lx|(-lx))>>31; |
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| 19 | hx = 0x7ff00000 - hx; |
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| 20 | return 1 - (int)((__uint32_t)(hx|(-hx))>>31); |
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| 21 | } |
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| 22 | |||
| 23 | #endif /* _DOUBLE_IS_32BITS */ |