X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fstr%2F_info;h=ea314dbf799a3460db02771aa356991870ec13ce;hp=0438ccfdbcd2bbff8bd2a87b82baa7fc3a36cead;hb=e6862ec8ae269217f3596f5af84747868b983afb;hpb=7f63d84eb712c54c57c3d4e9a92ffefe2f1b2ade

diff --git a/ccan/str/_info b/ccan/str/_info
index 0438ccfd..ea314dbf 100644
--- a/ccan/str/_info
+++ b/ccan/str/_info
@@ -8,6 +8,18 @@
  * 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>
@@ -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;
 	}