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| Rev | Author | Line No. | Line |
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| 3362 | Serge | 1 | /* sf_copysign.c -- float version of s_copysign.c. |
| 2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
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| 3 | */ |
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| 4 | |||
| 5 | /* |
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| 6 | * ==================================================== |
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| 7 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 8 | * |
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| 9 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 10 | * Permission to use, copy, modify, and distribute this |
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| 11 | * software is freely granted, provided that this notice |
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| 12 | * is preserved. |
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| 13 | * ==================================================== |
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| 14 | */ |
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| 15 | |||
| 16 | /* |
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| 17 | * copysignf(float x, float y) |
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| 18 | * copysignf(x,y) returns a value with the magnitude of x and |
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| 19 | * with the sign bit of y. |
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| 20 | */ |
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| 21 | |||
| 22 | #include "fdlibm.h" |
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| 23 | |||
| 24 | #ifdef __STDC__ |
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| 25 | float copysignf(float x, float y) |
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| 26 | #else |
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| 27 | float copysignf(x,y) |
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| 28 | float x,y; |
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| 29 | #endif |
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| 30 | { |
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| 31 | __uint32_t ix,iy; |
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| 32 | GET_FLOAT_WORD(ix,x); |
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| 33 | GET_FLOAT_WORD(iy,y); |
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| 34 | SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); |
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| 35 | return x; |
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| 36 | } |
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| 37 | |||
| 38 | #ifdef _DOUBLE_IS_32BITS |
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| 39 | |||
| 40 | #ifdef __STDC__ |
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| 41 | double copysign(double x, double y) |
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| 42 | #else |
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| 43 | double copysign(x,y) |
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| 44 | double x,y; |
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| 45 | #endif |
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| 46 | { |
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| 47 | return (double) copysignf((float) x, (float) y); |
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| 48 | } |
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| 49 | |||
| 50 | #endif /* defined(_DOUBLE_IS_32BITS) */ |