diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_nextafterl.c')
-rw-r--r-- | sysdeps/i386/fpu/s_nextafterl.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/sysdeps/i386/fpu/s_nextafterl.c b/sysdeps/i386/fpu/s_nextafterl.c deleted file mode 100644 index 600ad7a8d3..0000000000 --- a/sysdeps/i386/fpu/s_nextafterl.c +++ /dev/null @@ -1,125 +0,0 @@ -/* s_nextafterl.c -- long double version of s_nextafter.c. - * Special version for i387. - * 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 - -/* IEEE functions - * nextafterl(x,y) - * return the next machine floating-point number of x in the - * direction toward y. - * Special cases: - */ - -#include <errno.h> -#include <math.h> -#include <math_private.h> - -long double __nextafterl(long double x, long double y) -{ - u_int32_t hx,hy,ix,iy; - u_int32_t lx,ly; - int32_t esx,esy; - - GET_LDOUBLE_WORDS(esx,hx,lx,x); - GET_LDOUBLE_WORDS(esy,hy,ly,y); - ix = esx&0x7fff; /* |x| */ - iy = esy&0x7fff; /* |y| */ - - /* Intel's extended format has the normally implicit 1 explicit - present. Sigh! */ - if(((ix==0x7fff)&&(((hx&0x7fffffff)|lx)!=0)) || /* x is nan */ - ((iy==0x7fff)&&(((hy&0x7fffffff)|ly)!=0))) /* y is nan */ - return x+y; - if(x==y) return y; /* x=y, return y */ - if((ix|hx|lx)==0) { /* x == 0 */ - long double u; - SET_LDOUBLE_WORDS(x,esy&0x8000,0,1);/* return +-minsubnormal */ - u = math_opt_barrier (x); - u = u * u; - math_force_eval (u); /* raise underflow flag */ - return x; - } - if(esx>=0) { /* x > 0 */ - if(esx>esy||((esx==esy) && (hx>hy||((hx==hy)&&(lx>ly))))) { - /* x > y, x -= ulp */ - if(lx==0) { - if (hx <= 0x80000000) { - if (esx == 0) { - --hx; - } else { - esx -= 1; - hx = hx - 1; - if (esx > 0) - hx |= 0x80000000; - } - } else - hx -= 1; - } - lx -= 1; - } else { /* x < y, x += ulp */ - lx += 1; - if(lx==0) { - hx += 1; - if (hx==0 || (esx == 0 && hx == 0x80000000)) { - esx += 1; - hx |= 0x80000000; - } - } - } - } else { /* x < 0 */ - if(esy>=0||(esx>esy||((esx==esy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){ - /* x < y, x -= ulp */ - if(lx==0) { - if (hx <= 0x80000000 && esx != 0xffff8000) { - esx -= 1; - hx = hx - 1; - if ((esx&0x7fff) > 0) - hx |= 0x80000000; - } else - hx -= 1; - } - lx -= 1; - } else { /* x > y, x += ulp */ - lx += 1; - if(lx==0) { - hx += 1; - if (hx==0 || (esx == 0xffff8000 && hx == 0x80000000)) { - esx += 1; - hx |= 0x80000000; - } - } - } - } - esy = esx&0x7fff; - if(esy==0x7fff) { - long double u = x + x; /* overflow */ - math_force_eval (u); - __set_errno (ERANGE); - } - if(esy==0) { - long double u = x*x; /* underflow */ - math_force_eval (u); /* raise underflow flag */ - __set_errno (ERANGE); - } - SET_LDOUBLE_WORDS(x,esx,hx,lx); - return x; -} -weak_alias (__nextafterl, nextafterl) -strong_alias (__nextafterl, __nexttowardl) -weak_alias (__nextafterl, nexttowardl) |