mark functions with const and pure attributes

[gnulib.git] / lib / strnlen1.h

diff --git a/lib/strnlen1.h b/lib/strnlen1.h
index 1bb13de..a0634fe 100644 (file)
--- a/lib/strnlen1.h
+++ b/lib/strnlen1.h
@@ -28,7 +28,8 @@ extern "C" {
 /* Find the length of STRING + 1, but scan at most MAXLEN bytes.
    If no '\0' terminator is found in that many characters, return MAXLEN.  */
 /* This is the same as strnlen (string, maxlen - 1) + 1.  */
-extern size_t strnlen1 (const char *string, size_t maxlen);
+extern size_t strnlen1 (const char *string, size_t maxlen)
+  _GL_ATTRIBUTE_PURE;
 
 
 #ifdef __cplusplus