Support attribute deprecated for template alias (original) (raw)

Extended Description

I want to rename a templated class. To make the transition easier for the users, I'd like to keep the old class for one more version and mark it deprecated with the extensions from GCC / Clang (attribute deprecated). To avoid keeping an exact copy of the deprecated class, the use of template alias would be handy. Unfortunately Clang (3.3 and recent trunk) does not emit a warning (GCC does) for the following code in line 14:

template struct NewClassName { // ... };

template using OldClassNameUsing attribute ((deprecated)) = NewClassName;

typedef NewClassName OldClassNameTypedef attribute ((deprecated));

int main() { OldClassNameUsing objectUsing; OldClassNameTypedef objectTypedef;

return 0; }

Clang used:
clang version 3.4 (194323)
Target: x86_64-unknown-linux-gnu
Thread model: posix