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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/s_scalbnl.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_scalbnl.c')
-rw-r--r--sysdeps/libm-ieee754/s_scalbnl.c71
1 files changed, 0 insertions, 71 deletions
diff --git a/sysdeps/libm-ieee754/s_scalbnl.c b/sysdeps/libm-ieee754/s_scalbnl.c
deleted file mode 100644
index 32e4fb8cea..0000000000
--- a/sysdeps/libm-ieee754/s_scalbnl.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/* s_scalbnl.c -- long double version of s_scalbn.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.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: $";
-#endif
-
-/*
- * scalbnl (long double x, int n)
- * scalbnl(x,n) returns x* 2**n computed by exponent
- * manipulation rather than by actually performing an
- * exponentiation or a multiplication.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-#ifdef __STDC__
-static const long double
-#else
-static long double
-#endif
-two63 = 4.50359962737049600000e+15,
-twom63 = 1.08420217248550443400e-19,
-huge = 1.0e+4900L,
-tiny = 1.0e-4900L;
-
-#ifdef __STDC__
- long double __scalbnl (long double x, int n)
-#else
- long double __scalbnl (x,n)
- long double x; int n;
-#endif
-{
- int32_t k,es,hx,lx;
- GET_LDOUBLE_WORDS(es,hx,lx,x);
- k = es&0x7fff; /* extract exponent */
- if (k==0) { /* 0 or subnormal x */
- if ((lx|(hx&0x7fffffff))==0) return x; /* +-0 */
- x *= two63;
- GET_LDOUBLE_EXP(es,x);
- k = (hx&0x7fff) - 63;
- }
- if (k==0x7fff) return x+x; /* NaN or Inf */
- k = k+n;
- if (n> 50000 || k > 0x7ffe)
- return huge*__copysignl(huge,x); /* overflow */
- if (n< -50000)
- return tiny*__copysignl(tiny,x);
- if (k > 0) /* normal result */
- {SET_LDOUBLE_EXP(x,(es&0x8000)|k); return x;}
- if (k <= -63)
- return tiny*__copysignl(tiny,x); /*underflow*/
- k += 54; /* subnormal result */
- SET_LDOUBLE_EXP(x,(es&0x8000)|k);
- return x*twom63;
-}
-weak_alias (__scalbnl, scalbnl)