How to give a default value to an std::array with Visual C++ 2012?

Question

How to give a default value to an std::array? For example, something like

void f(std::array<int, 3> pt = std::array<int, 3>{0, 1, 2});

After checking with helpful comments. I think it is due to the compiler. How to work it around with VS 2012 without creating a function like std::array<int, 3> MakeArray(...) ?

Answer 1

Try the following

void f(std::array<int, 3> pt = {0, 1, 2});

Or I would write simply

void f(std::array<int, 3> = {0, 1, 2});

In GCC this code is not compiled. It seems it is a bug of the compiler. However you can write for GCC either as

void f( std::array<int, 3> = std::array<int, 3>( { 1, 2, 3 } ) );

or

void f( std::array<int, 3> = { { 1, 2, 3 } } );