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Last change
on this file since 471 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
781 bytes
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| 1 | |
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| 2 | /* @(#)s_signif.c 5.1 93/09/24 */ |
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| 3 | /* |
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| 4 | * ==================================================== |
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| 5 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 6 | * |
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| 7 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 8 | * Permission to use, copy, modify, and distribute this |
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| 9 | * software is freely granted, provided that this notice |
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| 10 | * is preserved. |
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| 11 | * ==================================================== |
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| 12 | */ |
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| 13 | |
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| 14 | /* |
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| 15 | * significand(x) computes just |
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| 16 | * scalb(x, (double) -ilogb(x)), |
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| 17 | * for exercising the fraction-part(F) IEEE 754-1985 test vector. |
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| 18 | */ |
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| 19 | |
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| 20 | #include "fdlibm.h" |
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| 21 | |
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| 22 | #ifndef _DOUBLE_IS_32BITS |
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| 23 | |
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| 24 | #ifdef __STDC__ |
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| 25 | double significand(double x) |
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| 26 | #else |
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| 27 | double significand(x) |
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| 28 | double x; |
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| 29 | #endif |
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| 30 | { |
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| 31 | return __ieee754_scalb(x,(double) -ilogb(x)); |
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| 32 | } |
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| 33 | |
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| 34 | #endif /* _DOUBLE_IS_32BITS */ |
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