1// RUN: rm -rf %t 2// RUN: %clang_cc1 -x c++ -I %S/Inputs/redecl-templates %s -verify -std=c++14 3// RUN: %clang_cc1 -x c++ -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -I %S/Inputs/redecl-templates %s -verify -std=c++14 4// expected-no-diagnostics 5 6template<int N> struct A {}; 7template<int N> using X = A<N>; 8 9template<int N> constexpr void f() {} 10template<int N> constexpr void g() { f<N>(); } 11 12template<int N> extern int v; 13template<int N> int &w = v<N>; 14 15#include "a.h" 16 17// Be careful not to mention A here, that'll import the decls from "a.h". 18int g(X<1> *); 19X<1> *p = 0; 20 21// This will implicitly instantiate A<1> if we haven't imported the explicit 22// specialization declaration from "a.h". 23int k = g(p); 24// Likewise for f and v. 25void h() { g<1>(); } 26int &x = w<1>; 27 28// This is OK: we declared the explicit specialization before we triggered 29// instantiation of this specialization. 30template<> struct A<1> {}; 31template<> constexpr void f<1>() {} 32template<> int v<1>; 33