https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71227
Bug ID: 71227 Summary: template friend function cannot be resolved Product: gcc Version: 6.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: ppwwyyxxc at gmail dot com Target Milestone: --- The following code gives error with 6.1.1 on up-to-date ArchLinux. However it works for g++-5. Is there some standard about this I'm missing, or is it a bug? class A { public: template<typename T> friend int f(int x, T v) { return x + v; } }; template<> int f(int x, int v) { return x + v; } $ g++ b.cpp b.cpp:15:19: error: âfâ is not a template function int f(int x, int v) {