Too much code, add english description

Rdatatable · Aug 29, 2024 · 986a661 · 986a661
1 parent b276a57
commit 986a661
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/utils.c b/src/utils.c
@@ -502,6 +502,7 @@ static inline bool equalLens(SEXP x) {
   return true;
 }
 
+// setDT()-friendly rectangular list, i.e.
 // is.list(x) && equalLens(x) && (!length(x) || !is.null(names(x)))
 bool isDataList(SEXP x) {
   return isNewList(x) && (!LENGTH(x) || (equalLens(x) && !isNull(getAttrib(x, R_NamesSymbol))));