changeset 726 | 3fc2a801c39e |
parent 529 | f5bc148f7e1f |
child 953 | b873350e6258 |
1.1 --- a/lemon/concepts/maps.h Fri Sep 25 12:24:16 2009 +0200 1.2 +++ b/lemon/concepts/maps.h Sat Sep 26 07:08:10 2009 +0200 1.3 @@ -182,7 +182,8 @@ 1.4 1.5 template<typename _ReferenceMap> 1.6 struct Constraints { 1.7 - void constraints() { 1.8 + typename enable_if<typename _ReferenceMap::ReferenceMapTag, void>::type 1.9 + constraints() { 1.10 checkConcept<ReadWriteMap<K, T>, _ReferenceMap >(); 1.11 ref = m[key]; 1.12 m[key] = val;