1 files changed, 9 insertions, 0 deletions
diff --git a/bin/date/vary.h b/bin/date/vary.h
new file mode 100644
index 0000000..146706f
--- /dev/null
+++ b/bin/date/vary.h
@@ -0,0 +1,9 @@
+struct vary {
+  char flag;
+  char *arg;
+  struct vary *next;
+};
+
+extern struct vary *vary_append(struct vary *v, char flag, char *arg);
+extern const struct vary *vary_apply(const struct vary *v, struct tm *t);
+extern void vary_destroy(struct vary *v);