diff options
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_modfl.c')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/s_modfl.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_modfl.c b/sysdeps/ieee754/ldbl-128ibm/s_modfl.c deleted file mode 100644 index f2e65f0c44..0000000000 --- a/sysdeps/ieee754/ldbl-128ibm/s_modfl.c +++ /dev/null @@ -1,94 +0,0 @@ -/* s_modfl.c -- long double version of s_modf.c. - * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz. - */ - -/* - * ==================================================== - * 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 - -/* - * modfl(long double x, long 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" -#include <math_ldbl_opt.h> - -#ifdef __STDC__ -static const long double one = 1.0; -#else -static long double one = 1.0; -#endif - -#ifdef __STDC__ - long double __modfl(long double x, long double *iptr) -#else - long double __modfl(x, iptr) - long double x,*iptr; -#endif -{ - int64_t i0,i1,j0; - u_int64_t i; - GET_LDOUBLE_WORDS64(i0,i1,x); - i1 &= 0x000fffffffffffffLL; - j0 = ((i0>>52)&0x7ff)-0x3ff; /* exponent of x */ - if(j0<52) { /* integer part in high x */ - if(j0<0) { /* |x|<1 */ - /* *iptr = +-0 */ - SET_LDOUBLE_WORDS64(*iptr,i0&0x8000000000000000ULL,0); - return x; - } else { - i = (0x000fffffffffffffLL)>>j0; - if(((i0&i)|(i1&0x7fffffffffffffffLL))==0) { /* x is integral */ - *iptr = x; - /* return +-0 */ - SET_LDOUBLE_WORDS64(x,i0&0x8000000000000000ULL,0); - return x; - } else { - SET_LDOUBLE_WORDS64(*iptr,i0&(~i),0); - return x - *iptr; - } - } - } else if (j0>103) { /* no fraction part */ - *iptr = x*one; - /* We must handle NaNs separately. */ - if (j0 == 0x400 && ((i0 & 0x000fffffffffffffLL) | i1)) - return x*one; - /* return +-0 */ - SET_LDOUBLE_WORDS64(x,i0&0x8000000000000000ULL,0); - return x; - } else { /* fraction part in low x */ - i = -1ULL>>(j0-52); - if((i1&i)==0) { /* x is integral */ - *iptr = x; - /* return +-0 */ - SET_LDOUBLE_WORDS64(x,i0&0x8000000000000000ULL,0); - return x; - } else { - SET_LDOUBLE_WORDS64(*iptr,i0,i1&(~i)); - return x - *iptr; - } - } -} -#ifdef IS_IN_libm -long_double_symbol (libm, __modfl, modfl); -#else -long_double_symbol (libc, __modfl, modfl); -#endif |