1 files changed, 71 insertions, 0 deletions
diff --git a/libgfortran/runtime/pause.c b/libgfortran/runtime/pause.c
new file mode 100644
index 00000000000..9b8447f66c9
--- /dev/null
+++ b/libgfortran/runtime/pause.c
@@ -0,0 +1,71 @@
+/* Implementation of the STOP statement.
+   Copyright 2002 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfor 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 2.1 of the License, or (at your option) any later version.
+
+Libgfor 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 libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include <string.h>
+#include <stdio.h>
+
+#include "libgfortran.h"
+
+#define pause_numeric prefix(pause_numeric)
+#define pause_string prefix(pause_string)
+
+static void
+do_pause (void)
+{
+  char buff[4];
+  st_printf ("To resume execution, type go.  "
+	     "Other input will terminate the job.\n");
+
+  fgets(buff, 4, stdin);
+  if (strncmp(buff, "go\n", 3) != 0)
+    stop_numeric (-1);
+  st_printf ("RESUMED\n");
+}
+
+/* A numeric or blank STOP statement.  */
+void
+pause_numeric (GFC_INTEGER_4 code)
+{
+  show_locus ();
+
+  if (code == -1)
+    st_printf ("PAUSE\n");
+  else
+    st_printf ("PAUSE %d\n", (int)code);
+
+  do_pause ();
+}
+
+
+void
+pause_string (char *string, GFC_INTEGER_4 len)
+{
+  show_locus ();
+
+  st_printf ("PAUSE ");
+  while (len--)
+    st_printf ("%c", *(string++));
+  st_printf ("\n");
+
+  do_pause ();
+}
+