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// RUN: %clang %s -S -emit-llvm -o - | grep -e "define linkonce_odr.*_ZlsR11std_ostreamRK8StreamerI3FooE"
// RUN: %clang_cc1 %s -DREDEFINE -verify
// PR8007: friend function not instantiated.
struct std_ostream
{
int dummy;
};
std_ostream cout;
template <typename STRUCT_TYPE>
struct Streamer
{
friend std_ostream& operator << (std_ostream& o, const Streamer& f) // expected-error{{redefinition of 'operator<<'}}
{
Streamer s(f);
s(o);
return o;
}
Streamer(const STRUCT_TYPE& s) : s(s) {}
const STRUCT_TYPE& s;
void operator () (std_ostream&) const;
};
typedef struct Foo {} Foo;
std_ostream& operator << (std_ostream&, const Streamer<Foo>&);
#ifdef REDEFINE
std_ostream& operator << (std_ostream& o, const Streamer<Foo>&) // expected-note{{is here}}
{
// Sema should flag this as a redefinition
return o;
}
#endif
template <>
void Streamer<Foo>::operator () (std_ostream& o) const // expected-note{{requested here}}
{
}
int main(void)
{
Foo foo;
cout << foo;
}
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