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inp_str.c
Package: gmp-5.0.1.tar.gz [view]
Upload User: qaz666999
Upload Date: 2022-08-06
Package Size: 2570k
Code Size: 1k
Category:
Algorithm
Development Platform:
Unix_Linux
- /* 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;
- }