diff options
Diffstat (limited to 'sysdeps/i386/fpu/s_nexttowardf.c')
-rw-r--r-- | sysdeps/i386/fpu/s_nexttowardf.c | 77 |
1 files changed, 0 insertions, 77 deletions
diff --git a/sysdeps/i386/fpu/s_nexttowardf.c b/sysdeps/i386/fpu/s_nexttowardf.c deleted file mode 100644 index e1156d1e4f..0000000000 --- a/sysdeps/i386/fpu/s_nexttowardf.c +++ /dev/null @@ -1,77 +0,0 @@ -/* s_nexttowardf.c -- float version of s_nextafter.c. - * Special i387 version. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@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 - -#include <errno.h> -#include <math.h> -#include <math_private.h> -#include <float.h> - -float __nexttowardf(float x, long double y) -{ - int32_t hx,ix,iy; - u_int32_t hy,ly,esy; - - GET_FLOAT_WORD(hx,x); - GET_LDOUBLE_WORDS(esy,hy,ly,y); - ix = hx&0x7fffffff; /* |x| */ - iy = esy&0x7fff; /* |y| */ - - /* Intel's extended format has the normally implicit 1 explicit - present. Sigh! */ - if((ix>0x7f800000) || /* x is nan */ - (iy>=0x7fff&&(((hy&0x7fffffff)|ly)!=0))) /* y is nan */ - return x+y; - if((long double) x==y) return y; /* x=y, return y */ - if(ix==0) { /* x == 0 */ - float u; - SET_FLOAT_WORD(x,((esy&0x8000)<<16)|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(x > y) { /* x -= ulp */ - hx -= 1; - } else { /* x < y, x += ulp */ - hx += 1; - } - } else { /* x < 0 */ - if(x < y) { /* x -= ulp */ - hx -= 1; - } else { /* x > y, x += ulp */ - hx += 1; - } - } - hy = hx&0x7f800000; - if(hy>=0x7f800000) { - float u = x+x; /* overflow */ - math_force_eval (u); - __set_errno (ERANGE); - } - if(hy<0x00800000) { - float u = x*x; /* underflow */ - math_force_eval (u); /* raise underflow flag */ - __set_errno (ERANGE); - } - SET_FLOAT_WORD(x,hx); - return x; -} -weak_alias (__nexttowardf, nexttowardf) |