X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fstr%2F_info;h=b579525faac18e1fa52096b2e9b6eff34a70b404;hp=0438ccfdbcd2bbff8bd2a87b82baa7fc3a36cead;hb=5877402640cff05f779b23a730e4cc62d729113f;hpb=7f63d84eb712c54c57c3d4e9a92ffefe2f1b2ade

diff --git a/ccan/str/_info b/ccan/str/_info
index 0438ccfd..b579525f 100644
--- a/ccan/str/_info
+++ b/ccan/str/_info
@@ -1,6 +1,6 @@
+#include "config.h"
 #include <stdio.h>
 #include <string.h>
-#include "config.h"
 
 /**
  * str - string helper routines
@@ -8,22 +8,34 @@
  * This is a grab bag of functions for string operations, designed to enhance
  * the standard string.h.
  *
+ * Note that if you define CCAN_STR_DEBUG, you will get extra compile
+ * checks on common misuses of the following functions (they will now
+ * be out-of-line, so there is a runtime penalty!).
+ *
+ *	strstr, strchr, strrchr:
+ *		Return const char * if first argument is const (gcc only).
+ *
+ *	isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph,
+ *	    islower, isprint, ispunct, isspace, isupper, isxdigit:
+ *		Static and runtime check that input is EOF or an *unsigned*
+ *		char, as per C standard (really!).
+ *
  * Example:
  *	#include <stdio.h>
  *	#include <ccan/str/str.h>
  *
  *	int main(int argc, char *argv[])
  *	{
- *		if (argv[1] && streq(argv[1], "--verbose"))
+ *		if (argc > 1 && streq(argv[1], "--verbose"))
  *			printf("verbose set\n");
- *		if (argv[1] && strstarts(argv[1], "--"))
+ *		if (argc > 1 && strstarts(argv[1], "--"))
  *			printf("Some option set\n");
- *		if (argv[1] && strends(argv[1], "cow-powers"))
+ *		if (argc > 1 && strends(argv[1], "cow-powers"))
  *			printf("Magic option set\n");
  *		return 0;
  *	}
  *
- * License: LGPL (2 or any later version)
+ * License: CC0 (Public domain)
  * Author: Rusty Russell <rusty@rustcorp.com.au>
  */
 int main(int argc, char *argv[])
@@ -32,6 +44,7 @@ int main(int argc, char *argv[])
 		return 1;
 
 	if (strcmp(argv[1], "depends") == 0) {
+		printf("ccan/build_assert\n");
 		return 0;
 	}