X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fstr%2Fstr.h;h=770a40fd1f4dca3fe599cfdee109fe9fa581b861;hp=8cfd7f29a5626cb7ca3a3196e545f35c3a74c0be;hb=053f9398c5959d070b7092653ec8f222200ab463;hpb=d4929b8d2c8fc18ab16d2ef2bf7af11e87dac36d

diff --git a/ccan/str/str.h b/ccan/str/str.h
index 8cfd7f29..770a40fd 100644
--- a/ccan/str/str.h
+++ b/ccan/str/str.h
@@ -55,4 +55,16 @@ static inline bool strends(const char *str, const char *postfix)
 #define stringify(expr)		stringify_1(expr)
 /* Double-indirection required to stringify expansions */
 #define stringify_1(expr)	#expr
+
+/**
+ * strcount - Count number of (non-overlapping) occurrences of a substring.
+ * @haystack: a C string
+ * @needle: a substring
+ *
+ * Example:
+ *	#define PRINT_COND_IF_FALSE(cond) \
+ *		((cond) || printf("%s is false!", stringify(cond)))
+ */
+size_t strcount(const char *haystack, const char *needle);
+
 #endif /* CCAN_STR_H */