| /* mpq_inp_str -- read an mpq from a FILE. |
| |
| Copyright 2001 Free Software Foundation, Inc. |
| |
| This file is part of the GNU MP Library. |
| |
| The GNU MP 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 3 of the License, or (at your |
| option) any later version. |
| |
| The GNU MP 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 MP Library. If not, see http://www.gnu.org/licenses/. */ |
| |
| #include <stdio.h> |
| #include <ctype.h> |
| #include "gmp.h" |
| #include "gmp-impl.h" |
| |
| |
| size_t |
| mpq_inp_str (mpq_ptr q, FILE *fp, int base) |
| { |
| size_t nread; |
| int c; |
| |
| if (fp == NULL) |
| fp = stdin; |
| |
| q->_mp_den._mp_size = 1; |
| q->_mp_den._mp_d[0] = 1; |
| |
| nread = mpz_inp_str (mpq_numref(q), fp, base); |
| if (nread == 0) |
| return 0; |
| |
| c = getc (fp); |
| nread++; |
| |
| if (c == '/') |
| { |
| c = getc (fp); |
| nread++; |
| |
| nread = mpz_inp_str_nowhite (mpq_denref(q), fp, base, c, nread); |
| if (nread == 0) |
| { |
| q->_mp_num._mp_size = 0; |
| q->_mp_den._mp_size = 1; |
| q->_mp_den._mp_d[0] = 1; |
| } |
| } |
| else |
| { |
| ungetc (c, fp); |
| nread--; |
| } |
| |
| return nread; |
| } |