From 14653cd6318fc792fe336e79853b5a2d24b5f591 Mon Sep 17 00:00:00 2001
From: Florian Forster <octo@leeloo.home.verplant.org>
Date: Sat, 10 May 2008 09:44:30 +0200
Subject: [PATCH] sn-check-bf: Added a brute-force checker.

It's a lot faster than the Perl version. \o/
---
 src/Makefile      |  9 ++++--
 src/sn-check-bf.c | 88 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+), 2 deletions(-)
 create mode 100644 src/sn-check-bf.c

diff --git a/src/Makefile b/src/Makefile
index 785e30e..4d351f7 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2,11 +2,14 @@ CC = gcc
 CFLAGS = -Wall -Werror -std=c99 -O3 -pthread
 #CFLAGS = -Wall -Werror -std=c99 -O0 -g -pthread
 
-all: sn-apply sn-cut sn-evolution sn-merge sn-normalize sn-show sn-tex
+APPLICATIONS = sn-apply sn-check-bf sn-cut sn-evolution sn-merge \
+	       sn-normalize sn-show sn-tex
+
+all: $(APPLICATIONS)
 
 clean:
 	rm -f *.o
-	rm -f sn-apply sn-cut sn-evolution sn-merge sn-normalize sn-show sn-tex
+	rm -f $(APPLICATIONS)
 
 sn_comparator.o: sn_comparator.c sn_comparator.h
 
@@ -21,6 +24,8 @@ sn_stage.o: sn_stage.c sn_stage.h sn_comparator.h
 
 sn-apply: sn-apply.c sn_network.o sn_stage.o sn_comparator.o sn_random.o
 
+sn-check-bf: sn-check-bf.c sn_network.o sn_stage.o sn_comparator.o sn_random.o
+
 sn-cut: sn-cut.c sn_network.o sn_stage.o sn_comparator.o sn_random.o
 
 sn-evolution: sn-evolution.c sn_network.o sn_stage.o sn_comparator.o sn_population.o sn_random.o
diff --git a/src/sn-check-bf.c b/src/sn-check-bf.c
new file mode 100644
index 0000000..0a0dd5f
--- /dev/null
+++ b/src/sn-check-bf.c
@@ -0,0 +1,88 @@
+/**
+ * collectd - src/sn-normalize.c
+ * Copyright (C) 2008  Florian octo Forster
+ *
+ * This program 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; only version 2 of the License is applicable.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ * Authors:
+ *   Florian octo Forster <octo at verplant.org>
+ **/
+
+#ifndef _ISOC99_SOURCE
+# define _ISOC99_SOURCE
+#endif
+#ifndef _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE 200112L
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "sn_network.h"
+
+void exit_usage (const char *name)
+{
+  printf ("%s [file]\n", name);
+  exit (1);
+}
+
+int main (int argc, char **argv)
+{
+  sn_network_t *n;
+  int status;
+
+  if (argc > 2)
+  {
+    exit_usage (argv[0]);
+  }
+  else if (argc == 2)
+  {
+    if ((strcmp ("-h", argv[1]) == 0)
+	|| (strcmp ("--help", argv[1]) == 0)
+	|| (strcmp ("-help", argv[1]) == 0))
+      exit_usage (argv[0]);
+
+    n = sn_network_read_file (argv[1]);
+  }
+  else
+  {
+    n = sn_network_read (stdin);
+  }
+
+  if (n == NULL)
+  {
+    printf ("n == NULL!\n");
+    return (1);
+  }
+
+  status = sn_network_brute_force_check (n);
+
+  if (status < 0)
+  {
+    printf ("sn_network_brute_force_check failed with status %i.\n", status);
+  }
+  else if (status > 0)
+  {
+    printf ("The network does NOT sort.\n");
+  }
+  else
+  {
+    printf ("All tests successful.\n");
+  }
+
+  return (status);
+} /* int main */
+
+/* vim: set shiftwidth=2 softtabstop=2 : */
-- 
2.11.0