Add yaz_strcmp_null

[yaz-moved-to-github.git] / include / yaz / matchstr.h

diff --git a/include/yaz/matchstr.h b/include/yaz/matchstr.h
index 600cdaf..bdc5386 100644 (file)
--- a/include/yaz/matchstr.h
+++ b/include/yaz/matchstr.h
@@ -87,6 +87,14 @@ YAZ_EXPORT int yaz_strncasecmp(const char *s1, const char *s2, size_t n);
 */
 YAZ_EXPORT int yaz_strcasecmp(const char *s1, const char *s2);
 
+/** \brief strcmp, null may be passed
+    \param s1 first buffer or NULL
+    \param s2 second buffer or NULL
+    \retval 0 buffers are equal
+    \retval >0 a > b
+    \retval <0 a < b
+*/
+YAZ_EXPORT int yaz_strcmp_null(const char *s1, const char *s2);
 
 YAZ_END_CDECL