util: Const version of strtok_len

[notmuch] / util / string-util.c

diff --git a/util/string-util.c b/util/string-util.c
index 3e7066cd58ea191a9e647f5a0177f5547f662388..a90501ee3e70198e652599e6da841ffe95db8f85 100644 (file)
--- a/util/string-util.c
+++ b/util/string-util.c
@@ -37,6 +37,14 @@ strtok_len (char *s, const char *delim, size_t *len)
     return *len ? s : NULL;
 }
 
+const char *
+strtok_len_c (const char *s, const char *delim, size_t *len)
+{
+    /* strtok_len is already const-safe, but we can't express both
+     * versions in the C type system. */
+    return strtok_len ((char*)s, delim, len);
+}
+
 char *
 sanitize_string (const void *ctx, const char *str)
 {