diff options
Diffstat (limited to 'libm/src/s_logbf.c')
| -rw-r--r-- | libm/src/s_logbf.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/libm/src/s_logbf.c b/libm/src/s_logbf.c deleted file mode 100644 index c54928c..0000000 --- a/libm/src/s_logbf.c +++ /dev/null @@ -1,41 +0,0 @@ -/* s_logbf.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. - * ==================================================== - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_logbf.c,v 1.8 2005/12/03 11:57:19 bde Exp $"; -#endif - -#include "math.h" -#include "math_private.h" - -static const float -two25 = 3.355443200e+07; /* 0x4c000000 */ - -float -logbf(float x) -{ - 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<0x00800000) { - x *= two25; /* convert subnormal x to normal */ - GET_FLOAT_WORD(ix,x); - ix &= 0x7fffffff; - return (float) ((ix>>23)-127-25); - } else - return (float) ((ix>>23)-127); -} |