aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/ieee754/ldbl-128ibm/s_modfl.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_modfl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_modfl.c94
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 f2e65f0..0000000
--- 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