diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_frexp.c')
-rw-r--r-- | sysdeps/ieee754/dbl-64/s_frexp.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_frexp.c b/sysdeps/ieee754/dbl-64/s_frexp.c deleted file mode 100644 index 874214ec7c..0000000000 --- a/sysdeps/ieee754/dbl-64/s_frexp.c +++ /dev/null @@ -1,58 +0,0 @@ -/* @(#)s_frexp.c 5.1 93/09/24 */ -/* - * ==================================================== - * 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: s_frexp.c,v 1.9 1995/05/10 20:47:24 jtc Exp $"; -#endif - -/* - * for non-zero x - * x = frexp(arg,&exp); - * return a double fp quantity x such that 0.5 <= |x| <1.0 - * and the corresponding binary exponent "exp". That is - * arg = x*2^exp. - * If arg is inf, 0.0, or NaN, then frexp(arg,&exp) returns arg - * with *exp=0. - */ - -#include <math.h> -#include <math_private.h> - -static const double - two54 = 1.80143985094819840000e+16; /* 0x43500000, 0x00000000 */ - -double -__frexp (double x, int *eptr) -{ - int32_t hx, ix, lx; - EXTRACT_WORDS (hx, lx, x); - ix = 0x7fffffff & hx; - *eptr = 0; - if (ix >= 0x7ff00000 || ((ix | lx) == 0)) - return x + x; /* 0,inf,nan */ - if (ix < 0x00100000) /* subnormal */ - { - x *= two54; - GET_HIGH_WORD (hx, x); - ix = hx & 0x7fffffff; - *eptr = -54; - } - *eptr += (ix >> 20) - 1022; - hx = (hx & 0x800fffff) | 0x3fe00000; - SET_HIGH_WORD (x, hx); - return x; -} -weak_alias (__frexp, frexp) -#ifdef NO_LONG_DOUBLE -strong_alias (__frexp, __frexpl) -weak_alias (__frexp, frexpl) -#endif |