diff options
Diffstat (limited to 'libm/s_floorf.c')
| -rw-r--r-- | libm/s_floorf.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/libm/s_floorf.c b/libm/s_floorf.c deleted file mode 100644 index 1cdc792c6..000000000 --- a/libm/s_floorf.c +++ /dev/null @@ -1,71 +0,0 @@ -/* s_floorf.c -- float version of s_floor.c. - * 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: s_floorf.c,v 1.4 1995/05/10 20:47:22 jtc Exp $"; -#endif - -/* - * floorf(x) - * Return x rounded toward -inf to integral value - * Method: - * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to floorf(x). - */ - -#include "math.h" -#include "math_private.h" - -#ifdef __STDC__ -static const float huge = 1.0e30; -#else -static float huge = 1.0e30; -#endif - -#ifdef __STDC__ - float __floorf(float x) -#else - float __floorf(x) - float x; -#endif -{ - int32_t i0,j0; - u_int32_t i; - GET_FLOAT_WORD(i0,x); - j0 = ((i0>>23)&0xff)-0x7f; - if(j0<23) { - if(j0<0) { /* raise inexact if x != 0 */ - if(huge+x>(float)0.0) {/* return 0*sign(x) if |x|<1 */ - if(i0>=0) {i0=0;} - else if((i0&0x7fffffff)!=0) - { i0=0xbf800000;} - } - } else { - i = (0x007fffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - if(huge+x>(float)0.0) { /* raise inexact flag */ - if(i0<0) i0 += (0x00800000)>>j0; - i0 &= (~i); - } - } - } else { - if(j0==0x80) return x+x; /* inf or NaN */ - else return x; /* x is integral */ - } - SET_FLOAT_WORD(x,i0); - return x; -} -weak_alias (__floorf, floorf) |