1 files changed, 91 insertions, 0 deletions
diff --git a/REORG.TODO/posix/bug-regex7.c b/REORG.TODO/posix/bug-regex7.c
new file mode 100644
index 0000000000..157ffffb82
--- /dev/null
+++ b/REORG.TODO/posix/bug-regex7.c
@@ -0,0 +1,91 @@
+/* Test for regs allocation in re_search and re_match.
+   Copyright (C) 2002-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Stepan Kasal <kasal@math.cas.cz>, 2002.
+
+   The GNU C 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 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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 C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <regex.h>
+
+
+int
+main (void)
+{
+  struct re_pattern_buffer regex;
+  struct re_registers regs;
+  const char *s;
+  int match, n;
+  int result = 0;
+
+  memset (&regex, '\0', sizeof (regex));
+  regs.start = regs.end = NULL;
+  regs.num_regs = 0;
+  s = re_compile_pattern ("a", 1, &regex);
+  if (s != NULL)
+    {
+      puts ("failed to compile pattern \"a\"");
+      result = 1;
+    }
+  else
+    {
+      match = re_search (&regex, "baobab", 6, 0, 6, &regs);
+      n = 1;
+      if (match != 1)
+	{
+	  printf ("re_search returned %d, expected 1\n", match);
+	  result = 1;
+	}
+      else if (regs.num_regs <= n || regs.start[n] != -1 || regs.end[n] != -1)
+	{
+	  puts ("re_search failed to fill the -1 sentinel");
+	  result = 1;
+	}
+    }
+
+  free (regex.buffer);
+  memset (&regex, '\0', sizeof (regex));
+
+  s = re_compile_pattern ("\\(\\(\\(a\\)\\)\\)", 13, &regex);
+  if (s != NULL)
+    {
+      puts ("failed to compile pattern /\\(\\(\\(a\\)\\)\\)/");
+      result = 1;
+    }
+  else
+    {
+      match = re_match (&regex, "apl", 3, 0, &regs);
+      n = 4;
+      if (match != 1)
+	{
+	  printf ("re_match returned %d, expected 1\n", match);
+	  result = 1;
+	}
+      else if (regs.num_regs <= n || regs.start[n] != -1 || regs.end[n] != -1)
+	{
+	  puts ("re_match failed to fill the -1 sentinel");
+	  result = 1;
+	}
+    }
+
+  if (result == 0)
+    puts (" -> OK");
+
+  return result;
+}