http://llvm.org/bugs/show_bug.cgi?id=17950
Bug ID: 17950
Summary: Friend template class not found outside of namespace
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
template<typename T>
class Class1;
namespace B {
template<typename U>
class Class2 {
template<typename V>
friend class Class1;
private:
int something_private;
};
}
template<typename T>
class Class1
{
void error() {
B::Class2 b;
b.something_private = 42;
}
};
Incorrectly issues an error because it things something_private is a private
member of B::Class2 (friend statement lookup didn't work). g++ correctly
doesn't flag an error.
Replacing the friend declaration by:
template<typename V>
friend class ::Class1;
Seems to fix the problem, confirming it looks like a name lookup problem.
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