diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128/s_logbl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_logbl.c | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_logbl.c b/sysdeps/ieee754/ldbl-128/s_logbl.c deleted file mode 100644 index 24baae64fa..0000000000 --- a/sysdeps/ieee754/ldbl-128/s_logbl.c +++ /dev/null @@ -1,54 +0,0 @@ -/* s_logbl.c -- long double version of s_logb.c. - * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz. - */ - -/* - * ==================================================== - * 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. - * ==================================================== - */ - -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: $"; -#endif - -/* - * 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> - -_Float128 -__logbl (_Float128 x) -{ - int64_t lx, hx, ex; - - GET_LDOUBLE_WORDS64 (hx, lx, x); - hx &= 0x7fffffffffffffffLL; /* high |x| */ - if ((hx | lx) == 0) - return -1.0 / fabsl (x); - if (hx >= 0x7fff000000000000LL) - return x * x; - if ((ex = hx >> 48) == 0) /* IEEE 754 logb */ - { - /* POSIX specifies that denormal number is treated as - though it were normalized. */ - int ma; - if (hx == 0) - ma = __builtin_clzll (lx) + 64; - else - ma = __builtin_clzll (hx); - ex -= ma - 16; - } - return (_Float128) (ex - 16383); -} - -weak_alias (__logbl, logbl) |