diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-96/s_logbl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-96/s_logbl.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/sysdeps/ieee754/ldbl-96/s_logbl.c b/sysdeps/ieee754/ldbl-96/s_logbl.c deleted file mode 100644 index 4289be1933..0000000000 --- a/sysdeps/ieee754/ldbl-96/s_logbl.c +++ /dev/null @@ -1,51 +0,0 @@ -/* s_logbl.c -- long double version of s_logb.c. - * Conversion to long double by Ulrich Drepper, - * Cygnus Support, drepper@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. - * ==================================================== - */ - -/* - * long double logbl(x) - * IEEE 754 logb. Included to pass IEEE test suite. Not recommend. - * Use ilogb instead. - */ - -#include <math.h> -#include <math_private.h> - -long double -__logbl (long double x) -{ - int32_t es, lx, ix; - - GET_LDOUBLE_WORDS (es, ix, lx, x); - es &= 0x7fff; /* exponent */ - if ((es | ix | lx) == 0) - return -1.0 / fabs (x); - if (es == 0x7fff) - return x * x; - if (es == 0) /* IEEE 754 logb */ - { - /* POSIX specifies that denormal number is treated as - though it were normalized. */ - int ma; - if (ix == 0) - ma = __builtin_clz (lx) + 32; - else - ma = __builtin_clz (ix); - es -= ma - 1; - } - return (long double) (es - 16383); -} - -weak_alias (__logbl, logbl) |