diff options
Diffstat (limited to 'newlib/libm/common/sf_logb.c')
| -rw-r--r-- | newlib/libm/common/sf_logb.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/newlib/libm/common/sf_logb.c b/newlib/libm/common/sf_logb.c deleted file mode 100644 index 6e67637..0000000 --- a/newlib/libm/common/sf_logb.c +++ /dev/null @@ -1,48 +0,0 @@ -/* sf_logb.c -- float version of s_logb.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#include "fdlibm.h" - -#ifdef __STDC__ - float logbf(float x) -#else - float logbf(x) - float x; -#endif -{ - __int32_t ix; - GET_FLOAT_WORD(ix,x); - ix &= 0x7fffffff; /* high |x| */ - if(ix==0) return (float)-1.0/fabsf(x); - if(ix>=0x7f800000) return x*x; - if((ix>>=23)==0) /* IEEE 754 logb */ - return -126.0; - else - return (float) (ix-127); -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double logb(double x) -#else - double logb(x) - double x; -#endif -{ - return (double) logbf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |