X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=mpfr%2Fprint_raw.c;fp=mpfr%2Fprint_raw.c;h=2038beed4a08e4eb1ecbb2c072d40ae951f4e974;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/mpfr/print_raw.c b/mpfr/print_raw.c new file mode 100644 index 00000000..2038beed --- /dev/null +++ b/mpfr/print_raw.c @@ -0,0 +1,129 @@ +/* mpfr_print_binary -- print the internal binary representation of a + floating-point number + +Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. +Contributed by the Arenaire and Cacao projects, INRIA. + +This file is part of the GNU MPFR Library. + +The GNU MPFR Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The GNU MPFR Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +MA 02110-1301, USA. */ + +#include "mpfr-impl.h" + +void +mpfr_fprint_binary (FILE *stream, mpfr_srcptr x) +{ + if (MPFR_IS_NAN (x)) + { + fprintf (stream, "@NaN@"); + return; + } + + if (MPFR_SIGN (x) < 0) + fprintf (stream, "-"); + + if (MPFR_IS_INF (x)) + fprintf (stream, "@Inf@"); + else if (MPFR_IS_ZERO (x)) + fprintf (stream, "0"); + else + { + mp_limb_t *mx; + mp_prec_t px; + mp_size_t n; + + mx = MPFR_MANT (x); + px = MPFR_PREC (x); + + fprintf (stream, "0."); + for (n = (px - 1) / BITS_PER_MP_LIMB; ; n--) + { + mp_limb_t wd, t; + + MPFR_ASSERTN (n >= 0); + wd = mx[n]; + for (t = MPFR_LIMB_HIGHBIT; t != 0; t >>= 1) + { + putc ((wd & t) == 0 ? '0' : '1', stream); + if (--px == 0) + { + mp_exp_t ex; + + ex = MPFR_GET_EXP (x); + MPFR_ASSERTN (ex >= LONG_MIN && ex <= LONG_MAX); + fprintf (stream, "E%ld", (long) ex); + return; + } + } + } + } +} + +void +mpfr_print_binary (mpfr_srcptr x) +{ + mpfr_fprint_binary (stdout, x); +} + +void +mpfr_print_mant_binary(const char *str, const mp_limb_t *p, mp_prec_t r) +{ + int i; + mp_prec_t count = 0; + char c; + mp_size_t n = (r - 1) / BITS_PER_MP_LIMB + 1; + + printf("%s ", str); + for(n-- ; n>=0 ; n--) + { + for(i = BITS_PER_MP_LIMB-1 ; i >=0 ; i--) + { + c = (p[n] & (((mp_limb_t)1L)<=0 ; n--) + { + for(i = BITS_PER_MP_LIMB-1 ; i >=0 ; i--) + { + c = (p[n] & (((mp_limb_t)1L)<