diff options
Diffstat (limited to 'sysdeps/libm-ieee754/s_modf.c')
| -rw-r--r-- | sysdeps/libm-ieee754/s_modf.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/sysdeps/libm-ieee754/s_modf.c b/sysdeps/libm-ieee754/s_modf.c deleted file mode 100644 index 7851f675a4..0000000000 --- a/sysdeps/libm-ieee754/s_modf.c +++ /dev/null @@ -1,85 +0,0 @@ -/* @(#)s_modf.c 5.1 93/09/24 */ -/* - * ==================================================== - * 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_modf.c,v 1.8 1995/05/10 20:47:55 jtc Exp $"; -#endif - -/* - * modf(double x, double *iptr) - * return fraction part of x, and return x's integral part in *iptr. - * Method: - * Bit twiddling. - * - * Exception: - * No exception. - */ - -#include "math.h" -#include "math_private.h" - -#ifdef __STDC__ -static const double one = 1.0; -#else -static double one = 1.0; -#endif - -#ifdef __STDC__ - double __modf(double x, double *iptr) -#else - double __modf(x, iptr) - double x,*iptr; -#endif -{ - int32_t i0,i1,j0; - u_int32_t i; - EXTRACT_WORDS(i0,i1,x); - j0 = ((i0>>20)&0x7ff)-0x3ff; /* exponent of x */ - if(j0<20) { /* integer part in high x */ - if(j0<0) { /* |x|<1 */ - INSERT_WORDS(*iptr,i0&0x80000000,0); /* *iptr = +-0 */ - return x; - } else { - i = (0x000fffff)>>j0; - if(((i0&i)|i1)==0) { /* x is integral */ - *iptr = x; - INSERT_WORDS(x,i0&0x80000000,0); /* return +-0 */ - return x; - } else { - INSERT_WORDS(*iptr,i0&(~i),0); - return x - *iptr; - } - } - } else if (j0>51) { /* no fraction part */ - *iptr = x*one; - /* We must handle NaNs separately. */ - if (j0 == 0x400 && ((i0 & 0xfffff) | i1)) - return x*one; - INSERT_WORDS(x,i0&0x80000000,0); /* return +-0 */ - return x; - } else { /* fraction part in low x */ - i = ((u_int32_t)(0xffffffff))>>(j0-20); - if((i1&i)==0) { /* x is integral */ - *iptr = x; - INSERT_WORDS(x,i0&0x80000000,0); /* return +-0 */ - return x; - } else { - INSERT_WORDS(*iptr,i0,i1&(~i)); - return x - *iptr; - } - } -} -weak_alias (__modf, modf) -#ifdef NO_LONG_DOUBLE -strong_alias (__modf, __modfl) -weak_alias (__modf, modfl) -#endif |