diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c b/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c deleted file mode 100644 index e2f6521f57..0000000000 --- a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c +++ /dev/null @@ -1,105 +0,0 @@ -/* s_nexttoward.c - * Conversion from s_nextafter.c by Ulrich Drepper, Cygnus Support, - * drepper@cygnus.com and 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 - -/* IEEE functions - * nexttoward(x,y) - * return the next machine floating-point number of x in the - * direction toward y. - * Special cases: - */ - -#include "math.h" -#include <math_private.h> -#include <math_ldbl_opt.h> -#include <float.h> - -#ifdef __STDC__ - double __nexttoward(double x, long double y) -#else - double __nexttoward(x,y) - double x; - long double y; -#endif -{ - int32_t hx,ix; - int64_t hy,iy; - u_int32_t lx; - u_int64_t ly,uly; - - EXTRACT_WORDS(hx,lx,x); - GET_LDOUBLE_WORDS64(hy,ly,y); - ix = hx&0x7fffffff; /* |x| */ - iy = hy&0x7fffffffffffffffLL; /* |y| */ - uly = ly&0x7fffffffffffffffLL; /* |y| */ - - if(((ix>=0x7ff00000)&&((ix-0x7ff00000)|lx)!=0) || /* x is nan */ - ((iy>=0x7ff0000000000000LL)&&((iy-0x7ff0000000000000LL)|uly)!=0)) - /* y is nan */ - return x+y; - if((long double) x==y) return y; /* x=y, return y */ - if((ix|lx)==0) { /* x == 0 */ - double u; - INSERT_WORDS(x,(u_int32_t)((hy>>32)&0x80000000),1);/* return +-minsub */ - u = math_opt_barrier (x); - u = u * u; - math_force_eval (u); /* raise underflow flag */ - return x; - } - if(hx>=0) { /* x > 0 */ - if (hy<0||(ix>>20)>(iy>>52) - || ((ix>>20)==(iy>>52) - && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL) - || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL) - )))) { /* x > y, x -= ulp */ - if(lx==0) hx -= 1; - lx -= 1; - } else { /* x < y, x += ulp */ - lx += 1; - if(lx==0) hx += 1; - } - } else { /* x < 0 */ - if (hy>=0||(ix>>20)>(iy>>52) - || ((ix>>20)==(iy>>52) - && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL) - || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL) - )))) { /* x < y, x -= ulp */ - if(lx==0) hx -= 1; - lx -= 1; - } else { /* x > y, x += ulp */ - lx += 1; - if(lx==0) hx += 1; - } - } - hy = hx&0x7ff00000; - if(hy>=0x7ff00000) { - x = x+x; /* overflow */ - if (FLT_EVAL_METHOD != 0 && FLT_EVAL_METHOD != 1) - /* Force conversion to double. */ - asm ("" : "+m"(x)); - return x; - } - if(hy<0x00100000) { - double u = x*x; /* underflow */ - math_force_eval (u); /* raise underflow flag */ - } - INSERT_WORDS(x,hx,lx); - return x; -} -long_double_symbol (libm, __nexttoward, nexttoward); |