File: vt-34751.C

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gcc-arm-none-eabi 15%3A7-2018-q2-5
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// { dg-do compile { target c++11 } }
// PR c++/34751
struct A {};

template<typename... Args = int>  // { dg-error "cannot have a default" }
void f(Args... args = 0); // { dg-error "cannot have a default argument" }

template<typename... Args> 
void g(Args... = 0); // { dg-error "cannot have a default argument" }


template<int, typename T = A, int T::*...p = 0 > struct B {}; // { dg-error "cannot have a default argument|no default argument" }

B<0> b;

template<int, typename T = A, int T::*... = 0 > struct C {}; // { dg-error "cannot have a default argument|no default argument" }

C<0> c;