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// Test that we explain why a template instantiation isn't constexpr

// { dg-options -std=c++0x }

template 

struct A

{

  T t;

  constexpr int f() { return 42; } // { dg-error "enclosing class" }

};

struct B { B(); operator int(); };

constexpr A ai = { 42 };

constexpr int i = ai.f();

constexpr int b = A().f();      // { dg-error "non-constexpr function" }

template 

constexpr int f (T t) { return 42; } // { dg-error "parameter" }

constexpr int x = f(B());            // { dg-error "constexpr" }