Last change
on this file was
444,
checked in by satin@…, 6 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
1.0 KB
|
Rev | Line | |
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[444] | 1 | /* sf_ldexp.c -- float version of s_ldexp.c. |
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| 2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
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| 3 | */ |
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| 4 | |
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| 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 | |
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| 16 | #include "fdlibm.h" |
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| 17 | #include <errno.h> |
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| 18 | |
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| 19 | #ifdef __STDC__ |
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| 20 | float ldexpf(float value, int exp) |
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| 21 | #else |
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| 22 | float ldexpf(value, exp) |
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| 23 | float value; int exp; |
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| 24 | #endif |
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| 25 | { |
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| 26 | if(!finitef(value)||value==(float)0.0) return value; |
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| 27 | value = scalbnf(value,exp); |
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| 28 | if(!finitef(value)||value==(float)0.0) errno = ERANGE; |
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| 29 | return value; |
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| 30 | } |
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| 31 | |
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| 32 | #ifdef _DOUBLE_IS_32BITS |
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| 33 | |
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| 34 | #ifdef __STDC__ |
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| 35 | double ldexp(double value, int exp) |
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| 36 | #else |
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| 37 | double ldexp(value, exp) |
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| 38 | double value; int exp; |
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| 39 | #endif |
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| 40 | { |
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| 41 | return (double) ldexpf((float) value, exp); |
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| 42 | } |
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| 43 | |
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| 44 | #endif /* defined(_DOUBLE_IS_32BITS) */ |
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