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author | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
commit | 82bcbebce43f0227f506d75a5b764b6847041bae (patch) | |
tree | fe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/libgfortran/runtime/pause.c | |
parent | 3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff) | |
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Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/libgfortran/runtime/pause.c')
-rw-r--r-- | gcc-4.7/libgfortran/runtime/pause.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.7/libgfortran/runtime/pause.c b/gcc-4.7/libgfortran/runtime/pause.c new file mode 100644 index 000000000..0e3c8ae08 --- /dev/null +++ b/gcc-4.7/libgfortran/runtime/pause.c @@ -0,0 +1,70 @@ +/* Implementation of the PAUSE statement. + Copyright 2002, 2005, 2007, 2009, 2010, 2011 Free Software Foundation, Inc. + Contributed by Paul Brook <paul@nowt.org> + +This file is part of the GNU Fortran runtime library (libgfortran). + +Libgfortran is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public +License as published by the Free Software Foundation; either +version 3 of the License, or (at your option) any later version. + +Libgfortran 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 General Public License for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +<http://www.gnu.org/licenses/>. */ + +#include "libgfortran.h" +#include <string.h> +#include <unistd.h> + +static void +do_pause (void) +{ + char buff[4]; + estr_write ("To resume execution, type go. " + "Other input will terminate the job.\n"); + + fgets(buff, 4, stdin); + if (strncmp(buff, "go\n", 3) != 0) + stop_string ('\0', 0); + estr_write ("RESUMED\n"); +} + +/* A numeric PAUSE statement. */ + +extern void pause_numeric (GFC_INTEGER_4); +export_proto(pause_numeric); + +void +pause_numeric (GFC_INTEGER_4 code) +{ + st_printf ("PAUSE %d\n", (int) code); + do_pause (); +} + +/* A character string or blank PAUSE statement. */ + +extern void pause_string (char *string, GFC_INTEGER_4 len); +export_proto(pause_string); + +void +pause_string (char *string, GFC_INTEGER_4 len) +{ + estr_write ("PAUSE "); + ssize_t w = write (STDERR_FILENO, string, len); + (void) sizeof (w); /* Avoid compiler warning about not using write + return val. */ + estr_write ("\n"); + + do_pause (); +} |