diff options
Diffstat (limited to 'libm/src/s_nexttowardf.c')
-rw-r--r-- | libm/src/s_nexttowardf.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/libm/src/s_nexttowardf.c b/libm/src/s_nexttowardf.c deleted file mode 100644 index 54156e6..0000000 --- a/libm/src/s_nexttowardf.c +++ /dev/null @@ -1,60 +0,0 @@ -/* - * ==================================================== - * 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. - * ==================================================== - */ - -#ifndef lint -static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_nexttowardf.c,v 1.1 2005/03/07 04:57:38 das Exp $"; -#endif - -#include <float.h> - -#include "fpmath.h" -#include "math.h" -#include "math_private.h" - -#define LDBL_INFNAN_EXP (LDBL_MAX_EXP * 2 - 1) - -float -nexttowardf(float x, long double y) -{ - union IEEEl2bits uy; - volatile float t; - int32_t hx,ix; - - GET_FLOAT_WORD(hx,x); - ix = hx&0x7fffffff; /* |x| */ - uy.e = y; - - if((ix>0x7f800000) || - (uy.bits.exp == LDBL_INFNAN_EXP && - ((uy.bits.manh&~LDBL_NBIT)|uy.bits.manl) != 0)) - return x+y; /* x or y is nan */ - if(x==y) return (float)y; /* x=y, return y */ - if(ix==0) { /* x == 0 */ - SET_FLOAT_WORD(x,(uy.bits.sign<<31)|1);/* return +-minsubnormal */ - t = x*x; - if(t==x) return t; else return x; /* raise underflow flag */ - } - if(hx>=0 ^ x < y) /* x -= ulp */ - hx -= 1; - else /* x += ulp */ - hx += 1; - ix = hx&0x7f800000; - if(ix>=0x7f800000) return x+x; /* overflow */ - if(ix<0x00800000) { /* underflow */ - t = x*x; - if(t!=x) { /* raise underflow flag */ - SET_FLOAT_WORD(y,hx); - return y; - } - } - SET_FLOAT_WORD(x,hx); - return x; -} |