http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54336
--- Comment #2 from Andy Lutomirski <luto at mit dot edu> 2012-08-20 23:21:32
UTC ---
Fair enough. Here's a better example:
struct A { int method(); };
template<typename T> auto func(T x) -> decltype(x.method())
{
bogus(x);
}
int main() { func(A()); }
The error is:
decltype_return.cc: In instantiation of 'decltype (x.method()) func(T) [with T
= A; decltype (x.method()) = int]':
decltype_return.cc:8:22: required from here
decltype_return.cc:5:3: error: 'bogus' was not declared in this scope
bogus(x);
^
'decltype (x.method())' is still meaningless in that context. Even just 'auto
func(T) [with ...; auto = int]' might be less puzzling.
(This is a very minor issue -- I just found it puzzling when I hit it earlier
today in an STL error message.)
