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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * ==================================================== |
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| 3 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 4 | * |
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| 5 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 6 | * Permission to use, copy, modify, and distribute this |
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| 7 | * software is freely granted, provided that this notice |
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| 8 | * is preserved. |
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| 9 | * ==================================================== |
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| 10 | */ |
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| 11 | |||
| 12 | /* |
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| 13 | * __isnanf(x) returns 1 is x is nan, else 0; |
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| 14 | */ |
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| 15 | |||
| 16 | #include "fdlibm.h" |
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| 17 | |||
| 18 | int |
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| 19 | _DEFUN (__isnanf, (x), |
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| 20 | float x) |
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| 21 | { |
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| 22 | __int32_t ix; |
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| 23 | GET_FLOAT_WORD(ix,x); |
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| 24 | ix &= 0x7fffffff; |
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| 25 | return FLT_UWORD_IS_NAN(ix); |
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| 26 | } |
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| 27 | |||
| 28 | #ifdef _DOUBLE_IS_32BITS |
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| 29 | |||
| 30 | int |
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| 31 | _DEFUN (__isnand, (x), |
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| 32 | double x) |
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| 33 | { |
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| 34 | return __isnanf((float) x); |
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| 35 | } |
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| 36 | |||
| 37 | #endif /* defined(_DOUBLE_IS_32BITS) */ |