Initial revision

src/main.cc

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+/* Driver program for the Gen_Perf hash function generator
+   Copyright (C) 1989-1998 Free Software Foundation, Inc.
+   written by Douglas C. Schmidt (schmidt@ics.uci.edu)
+
+This file is part of GNU GPERF.
+
+GNU GPERF 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 1, or (at your option)
+any later version.
+
+GNU GPERF 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU GPERF; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111, USA.  */
+
+/* Simple driver program for the Gen_Perf.hash function generator.
+   Most of the hard work is done in class Gen_Perf and its class methods. */
+
+#include "config.h"
+#include <sys/types.h>
+#if LARGE_STACK_ARRAYS && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#endif
+
+#include <stdio.h>
+#include "options.h"
+#include "gen-perf.h"
+#include "trace.h"
+
+int
+main (int argc, char *argv[])
+{
+  T (Trace t ("main");)
+
+#if LARGE_STACK_ARRAYS && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT) && defined(RLIMIT_STACK)
+  /* Get rid of any avoidable limit on stack size.  */
+  {
+    struct rlimit rlim;
+    if (getrlimit (RLIMIT_STACK, &rlim) == 0)
+      if (rlim.rlim_cur < rlim.rlim_max)
+        {
+          rlim.rlim_cur = rlim.rlim_max;
+          setrlimit (RLIMIT_STACK, &rlim);
+        }
+  }
+#endif /* RLIMIT_STACK */
+
+  /* Sets the Options. */
+  option (argc, argv);
+
+  /* Initializes the key word list. */
+  Gen_Perf generate_table;
+
+  /* Generates and prints the Gen_Perf hash table. */
+  int status = generate_table ();
+
+  /* Don't use exit() here, it skips the destructors. */
+  return status;
+}