Gcc 4.0 (and prior) rejects the well-fromed program below. The error message
suggests that the compiler attempts to call the function A<int>::foo() defined
in the dependent base class of B<int> contrary to the requirement in 14.6.2, p3,
but fails to consider the function foo(A<int>).
$ cat t.cpp && g++ t.cpp
/* 1 */ template <class T> struct A { int foo (T) { return 1; } };
/* 2 */ template <class T> int foo (T) { return 2; }
/* 3 */ template <class T> struct B: T { int bar () { return foo (T ()); } };
/* 4 */ int foo (A<int>) { return 0; }
/* 5 */ int main () { return B<A<int> >().bar (); }
t.cpp: In member function 'int B<T>::bar() [with T = A<int>]':
t.cpp:5: instantiated from here
t.cpp:3: error: no matching function for call to 'B<A<int> >::foo(A<int>)'
t.cpp:1: note: candidates are: int A<T>::foo(T) [with T = int]
--
Summary: gcc 4.0 examines dependent base classes
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sebor at roguewave dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22040
