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Annotation of OpenXM_contrib/gmp/mpq/inp_str.c, Revision 1.1.1.1

1.1       ohara       1: /* mpq_inp_str -- read an mpq from a FILE.
                      2:
                      3: Copyright 2001 Free Software Foundation, Inc.
                      4:
                      5: This file is part of the GNU MP Library.
                      6:
                      7: The GNU MP Library is free software; you can redistribute it and/or modify
                      8: it under the terms of the GNU Lesser General Public License as published by
                      9: the Free Software Foundation; either version 2.1 of the License, or (at your
                     10: option) any later version.
                     11:
                     12: The GNU MP Library is distributed in the hope that it will be useful, but
                     13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
                     15: License for more details.
                     16:
                     17: You should have received a copy of the GNU Lesser General Public License
                     18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     20: MA 02111-1307, USA. */
                     21:
                     22: #include <stdio.h>
                     23: #include <ctype.h>
                     24: #include "gmp.h"
                     25: #include "gmp-impl.h"
                     26:
                     27:
                     28: size_t
                     29: mpq_inp_str (mpq_ptr q, FILE *fp, int base)
                     30: {
                     31:   size_t  nread;
                     32:   int     c;
                     33:
                     34:   if (fp == NULL)
                     35:     fp = stdin;
                     36:
                     37:   q->_mp_den._mp_size = 1;
                     38:   q->_mp_den._mp_d[0] = 1;
                     39:
                     40:   nread = mpz_inp_str (mpq_numref(q), fp, base);
                     41:   if (nread == 0)
                     42:     return 0;
                     43:
                     44:   c = getc (fp);
                     45:   nread++;
                     46:
                     47:   if (c == '/')
                     48:     {
                     49:       c = getc (fp);
                     50:       nread++;
                     51:
                     52:       nread = mpz_inp_str_nowhite (mpq_denref(q), fp, base, c, nread);
                     53:       if (nread == 0)
                     54:         {
                     55:           q->_mp_num._mp_size = 0;
                     56:           q->_mp_den._mp_size = 1;
                     57:           q->_mp_den._mp_d[0] = 1;
                     58:         }
                     59:     }
                     60:   else
                     61:     {
                     62:       ungetc (c, fp);
                     63:       nread--;
                     64:     }
                     65:
                     66:   return nread;
                     67: }