diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_ceill.c')
-rw-r--r-- | sysdeps/libm-ieee754/s_ceill.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/libm-ieee754/s_ceill.c b/sysdeps/libm-ieee754/s_ceill.c deleted file mode 100644 index d53f3954ba..0000000000 --- a/sysdeps/libm-ieee754/s_ceill.c +++ /dev/null @@ -1,89 +0,0 @@ -/* s_ceill.c -- long double version of s_ceil.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 - -/* - * ceill(x) - * Return x rounded toward -inf to integral value - * Method: - * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to ceil(x). - */ - -#include "math.h" -#include "math_private.h" - -#ifdef __STDC__ -static const long double huge = 1.0e4930; -#else -static long double huge = 1.0e4930; -#endif - -#ifdef __STDC__ - long double __ceill(long double x) -#else - long double __ceill(x) - long double x; -#endif -{ - int32_t i1,j0; - u_int32_t i,j,se,i0,sx; - GET_LDOUBLE_WORDS(se,i0,i1,x); - sx = (se>>15)&1; - j0 = (se&0x7fff)-0x3fff; - if(j0<31) { - if(j0<0) { /* raise inexact if x != 0 */ - if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */ - if(sx) {se=0x8000;i0=0;i1=0;} - else if((i0|i1)!=0) { se=0x3fff;i0=0;i1=0;} - } - } else { - i = (0x7fffffff)>>j0; - if(((i0&i)|i1)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(sx==0) { - if (j0>0) i0 += (0x80000000)>>j0; - else ++se; - } - i0 &= (~i); i1=0; - } - } - } else if (j0>62) { - if(j0==0x4000) return x+x; /* inf or NaN */ - else return x; /* x is integral */ - } else { - i = ((u_int32_t)(0xffffffff))>>(j0-31); - if((i1&i)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(sx==0) { - if(j0==31) i0+=1; - else { - j = i1 + (1<<(63-j0)); - if(j<i1) i0+=1; /* got a carry */ - i1 = j; - } - } - i1 &= (~i); - } - } - SET_LDOUBLE_WORDS(x,se,i0,i1); - return x; -} -weak_alias (__ceill, ceill) |