diff: reject unknown change class given to --diff-filter

diff --git a/diff.h b/diff.h
index 78b4091dd5b59fe4442262cd79cf71f8a4a2b98f..a36720752f08fc26ca2ada0b2688b726518e13d6 100644 (file)
--- a/diff.h
+++ b/diff.h
@@ -103,12 +103,15 @@ enum diff_words_type {
 };
 
 struct diff_options {
-       const char *filter;
        const char *orderfile;
        const char *pickaxe;
        const char *single_follow;
        const char *a_prefix, *b_prefix;
        unsigned flags;
+
+       /* diff-filter bits */
+       unsigned int filter;
+
        int use_color;
        int context;
        int interhunkcontext;