2 files changed, 3 insertions, 0 deletions
diff --git a/README b/README
index 9683f47..fc6e5de 100644
--- a/README
+++ b/README
@@ -78,6 +78,7 @@ FEATURES:
         • Functions for printing diagnostics and optionally crashing with
           strerror() support
     • macros.h
+        • TODO()
         • MIN()/MAX()/CLAMP()
         • Better assertion macro
         • More readable strcmp()/memcmp()/etc. wrappers for equality checking
diff --git a/include/macros.h b/include/macros.h
index 4a8108e..61f7ca3 100644
--- a/include/macros.h
+++ b/include/macros.h
@@ -11,6 +11,8 @@
 #define streq(...) (!strcmp(__VA_ARGS__))
 #define u8eq(...)  (!u8cmp(__VA_ARGS__))
 
+#define TODO(s) err("%s:%s:%d: todo: %s", __FILE__, __func__, __LINE__, s)
+
 #ifdef NDEBUG
 #	include <stddef.h>
 #	define ASSUME(p) ((p) ? (void)0 : unreachable())