1*86d7f5d3SJohn Marino /* mpq_inp_str -- read an mpq from a FILE.
2*86d7f5d3SJohn Marino
3*86d7f5d3SJohn Marino Copyright 2001 Free Software Foundation, Inc.
4*86d7f5d3SJohn Marino
5*86d7f5d3SJohn Marino This file is part of the GNU MP Library.
6*86d7f5d3SJohn Marino
7*86d7f5d3SJohn Marino The GNU MP Library is free software; you can redistribute it and/or modify
8*86d7f5d3SJohn Marino it under the terms of the GNU Lesser General Public License as published by
9*86d7f5d3SJohn Marino the Free Software Foundation; either version 3 of the License, or (at your
10*86d7f5d3SJohn Marino option) any later version.
11*86d7f5d3SJohn Marino
12*86d7f5d3SJohn Marino The GNU MP Library is distributed in the hope that it will be useful, but
13*86d7f5d3SJohn Marino WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14*86d7f5d3SJohn Marino or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15*86d7f5d3SJohn Marino License for more details.
16*86d7f5d3SJohn Marino
17*86d7f5d3SJohn Marino You should have received a copy of the GNU Lesser General Public License
18*86d7f5d3SJohn Marino along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
19*86d7f5d3SJohn Marino
20*86d7f5d3SJohn Marino #include <stdio.h>
21*86d7f5d3SJohn Marino #include <ctype.h>
22*86d7f5d3SJohn Marino #include "gmp.h"
23*86d7f5d3SJohn Marino #include "gmp-impl.h"
24*86d7f5d3SJohn Marino
25*86d7f5d3SJohn Marino
26*86d7f5d3SJohn Marino size_t
mpq_inp_str(mpq_ptr q,FILE * fp,int base)27*86d7f5d3SJohn Marino mpq_inp_str (mpq_ptr q, FILE *fp, int base)
28*86d7f5d3SJohn Marino {
29*86d7f5d3SJohn Marino size_t nread;
30*86d7f5d3SJohn Marino int c;
31*86d7f5d3SJohn Marino
32*86d7f5d3SJohn Marino if (fp == NULL)
33*86d7f5d3SJohn Marino fp = stdin;
34*86d7f5d3SJohn Marino
35*86d7f5d3SJohn Marino q->_mp_den._mp_size = 1;
36*86d7f5d3SJohn Marino q->_mp_den._mp_d[0] = 1;
37*86d7f5d3SJohn Marino
38*86d7f5d3SJohn Marino nread = mpz_inp_str (mpq_numref(q), fp, base);
39*86d7f5d3SJohn Marino if (nread == 0)
40*86d7f5d3SJohn Marino return 0;
41*86d7f5d3SJohn Marino
42*86d7f5d3SJohn Marino c = getc (fp);
43*86d7f5d3SJohn Marino nread++;
44*86d7f5d3SJohn Marino
45*86d7f5d3SJohn Marino if (c == '/')
46*86d7f5d3SJohn Marino {
47*86d7f5d3SJohn Marino c = getc (fp);
48*86d7f5d3SJohn Marino nread++;
49*86d7f5d3SJohn Marino
50*86d7f5d3SJohn Marino nread = mpz_inp_str_nowhite (mpq_denref(q), fp, base, c, nread);
51*86d7f5d3SJohn Marino if (nread == 0)
52*86d7f5d3SJohn Marino {
53*86d7f5d3SJohn Marino q->_mp_num._mp_size = 0;
54*86d7f5d3SJohn Marino q->_mp_den._mp_size = 1;
55*86d7f5d3SJohn Marino q->_mp_den._mp_d[0] = 1;
56*86d7f5d3SJohn Marino }
57*86d7f5d3SJohn Marino }
58*86d7f5d3SJohn Marino else
59*86d7f5d3SJohn Marino {
60*86d7f5d3SJohn Marino ungetc (c, fp);
61*86d7f5d3SJohn Marino nread--;
62*86d7f5d3SJohn Marino }
63*86d7f5d3SJohn Marino
64*86d7f5d3SJohn Marino return nread;
65*86d7f5d3SJohn Marino }
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