Binding temporary to const reference in c'tor initializer list

Question

Section 12.2.5 in C++03 says \"A temporary bound to a reference member in a constructor’s ctor-initializer (12.6.2) persists until the constructor exits\"
S

Answer 1

I have tried this with MS VS 2010, and it gives me the output also gives warning during compile:

warning C4413: 'bar::ref' : reference member is initialized to a temporary that doesn't persist after the constructor exits

foo c'tor
bar c'tor
foo d'tor
Press any key to continue . . .

It seems that MS VS 2010 implements specification correctly. I agree that it is a bug for g++.

EDIT: ref should be initialized in constructor`s initialize list.