https://bugs.llvm.org/show_bug.cgi?id=40238
Bug ID: 40238
Summary: fails to deduce template specialization in friend
declaration
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
clang fails to deduce that the friend declaration refers to ::func<int> in the
below
```
template <typename T>
void func(T);
class Cls {
friend void ::func(int);
};
```
Rejecting with:
```
error: out-of-line declaration of 'func' does not match any declaration in the
global namespace
friend void ::func(int);
^~~~
```
I believe this should be allowed by [temp.friend]/1.3:
http://eel.is/c++draft/temp.friend#1.3
see discussion here: https://stackoverflow.com/q/54055575/1013719
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