c-opts.c (c_common_init_options): Check option array is sorted if checking enabled.

	* c-opts.c (c_common_init_options): Check option array is
	sorted if checking enabled.

From-SVN: r56241

gcc/ChangeLog

+2002-08-13  Neil Booth  <neil@daikokuya.co.uk>
+
+	* c-opts.c (c_common_init_options): Check option array is
+	sorted if checking enabled.
+
 2002-08-13  Gabriel Dos Reis  <gdr@nerim.net>
 
 	* c-pretty-print.c: #include "c-tree.h".

gcc/c-opts.c

@@ -495,6 +495,14 @@ c_common_init_options (lang)
      runtime.  */
   qsort (cl_options, N_OPTS, sizeof (struct cl_option), opt_comp);
 #endif
+#if ENABLE_CHECKING
+  size_t i;
+
+  for (i = 1; i < N_OPTS; i++)
+    if (strcmp (cl_options[i - 1].opt_text, cl_options[i].opt_text) >= 0)
+      error ("options array incorrectly sorted: %s is before %s",
+	     cl_options[i - 1].opt_text, cl_options[i].opt_text);
+#endif
 
   c_language = lang;
   parse_in = cpp_create_reader (lang == clk_c ? CLK_GNUC89 : CLK_GNUCXX);