=================================================================== RCS file: /home/cvs/OpenXM_contrib/gmp/mpfr/Attic/out_str.c,v retrieving revision 1.1 retrieving revision 1.1.1.2 diff -u -p -r1.1 -r1.1.1.2 --- OpenXM_contrib/gmp/mpfr/Attic/out_str.c 2000/09/09 14:12:19 1.1 +++ OpenXM_contrib/gmp/mpfr/Attic/out_str.c 2003/08/25 16:06:07 1.1.1.2 @@ -1,65 +1,97 @@ /* mpfr_out_str -- output a floating-point number to a stream -Copyright (C) 1999 PolKA project, Inria Lorraine and Loria +Copyright 1999, 2001 Free Software Foundation, Inc. This file is part of the MPFR Library. The MPFR Library is free software; you can redistribute it and/or modify -it under the terms of the GNU Library General Public License as published by -the Free Software Foundation; either version 2 of the License, or (at your +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 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 Library General Public +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 Library General Public License +You should have received a copy of the GNU Lesser General Public License along with the MPFR Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include -#include +#include +#include #include "gmp.h" #include "gmp-impl.h" #include "mpfr.h" +#include "mpfr-impl.h" size_t -#if __STDC__ mpfr_out_str (FILE *stream, int base, size_t n_digits, mpfr_srcptr op, - unsigned char rnd_mode) -#else -mpfr_out_str (stream, base, n_digits, op, rnd_mode) - FILE *stream; - int base; - size_t n_digits; - mpfr_srcptr op; - unsigned char rnd_mode; -#endif + mp_rnd_t rnd_mode) { - char *s,*s0; size_t l; mp_exp_t e; + char *s, *s0; + size_t l; + mp_exp_t e; - if (FLAG_NAN(op)) { fprintf(stream, "NaN"); return 3; } - if (!NOTZERO(op)) { fprintf(stream, "0"); return 1; } + if (MPFR_IS_NAN(op)) + { + fprintf (stream, "NaN"); + return 3; + } - s = mpfr_get_str(NULL, &e, base, n_digits, op, rnd_mode); + if (MPFR_IS_INF(op)) + { + if (MPFR_SIGN(op) > 0) + { + fprintf (stream, "Inf"); + return 3; + } + else + { + fprintf (stream, "-Inf"); + return 4; + } + } + + if (MPFR_IS_ZERO(op)) + { + if (MPFR_SIGN(op) > 0) + { + fprintf(stream, "0"); + return 1; + } + else + { + fprintf(stream, "-0"); + return 2; + } + } + + s = mpfr_get_str (NULL, &e, base, n_digits, op, rnd_mode); + s0 = s; /* for op=3.1416 we have s = "31416" and e = 1 */ - - l = strlen(s)+1; - if (*s == '-') fputc(*s++, stream); - fputc(*s++, stream); e--; /* writes leading digit */ - fputc('.', stream); /* decimal point */ - fputs(s, stream); /* rest of mantissa */ - if (e) { - fputc((base>10) ? '@' : 'e', stream); l++; - sprintf(s, "%ld", e); - l += strlen(s); - fprintf(stream, "%s", s); - } + l = strlen (s) + 1; /* size of allocated block returned by mpfr_get_str + - may be incorrect, as only an upper bound? */ + if (*s == '-') + fputc (*s++, stream); - (*_mp_free_func)(s0, l); + /* outputs mantissa */ + fputc (*s++, stream); e--; /* leading digit */ + fputc ('.', stream); /* decimal point */ + fputs (s, stream); /* rest of mantissa */ + (*__gmp_free_func) (s0, l); + + /* outputs exponent */ + if (e) + { + MPFR_ASSERTN(e >= LONG_MIN); + MPFR_ASSERTN(e <= LONG_MAX); + l += fprintf (stream, (base <= 10 ? "e%ld" : "@%ld"), (long) e); + } + return l; }