Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpq / inp_str.c

diff --git a/gmp/mpq/inp_str.c b/gmp/mpq/inp_str.c
new file mode 100644 (file)
index 0000000..9df6d80
--- /dev/null
+++ b/gmp/mpq/inp_str.c
@@ -0,0 +1,65 @@
+/* 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;
+}