Matching on Outer Template Parameters
Tyson Whitehead
twhitehe@uwo.ca
Sat Sep 11 15:31:00 GMT 2004
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I tried gcc 3.5 this morning, the one provided in the Debian experimental
distribution -- g++-3.5 (GCC) 3.5.0 20040724 (experimental) (Debian
3.5-0pre1). Matching on outer template parameters still does not work (bugs
4882, 13088, and 14032). Again:
template<typename t>
struct A {
template<typename,typename>
struct B { };
template<typename d>
struct B<t,d> { typedef int type; };
};
int main(){
A<void>::B<void,void>::type val = 0;
return val;
}
Bug.cpp:11: error: `type' is not a member of `A<void>::B<void, void>'
The code compiles fine with icc (Intel), cxx (Digital), and apparently Comeau
C/C++.
- -T
PS: As a bit of a side note, bug 13088 did actually contain two different
bugs. The original is a duplicate of bug 4882. The one it picked up with
the nested_deductions code, nested templates not matching on template
template specializations [see original post for vastly simplified code], has
been fixed.
- --
Tyson Whitehead (-twhitehe@uwo.ca -- WSC-)
Computer Engineer Dept. of Applied Mathematics,
Graduate Student- Applied Mathematics University of Western Ontario,
GnuPG Key ID# 0x8A2AB5D8 London, Ontario, Canada
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