1 files changed, 5 insertions, 0 deletions
diff --git a/doc/manual.txt b/doc/manual.txt
index 2002a2461..56c1fa95c 100755
--- a/doc/manual.txt
+++ b/doc/manual.txt
@@ -442,6 +442,11 @@ The rules for compile-time computability are:
    computable arguments.
 
 
+Constants cannot be of type ``var`` or ``object``, nor can 
+they contain such a type. For the types ``ptr`` and ``ref`` only the
+constant literal ``nil`` is possible.
+
+
 Types
 -----