template default parameters?

[Gernot Frisch]

Hmm...

template <class flt=double> MyVector
{
};

MyVector v;

gives error C2955: template argument list required

But... I said it should be "double" by default, didn't I?

 

[Carlos Martinez Garcia]

try "MyVector<> v" instead "MyVector v"

 

[TonyO]

template <class flt=double> MyVector
{
};

MyVector v;

gives error C2955: template argument list required

But... I said it should be "double" by default, didn't I?

You must always supply the angle-bracket pair when instantiating a
class template, even if you don't need to supply any actual arguments
between them (as in your example).

Tony.

 

[ben]

You must always supply the angle-bracket pair when instantiating a

class template, even if you don't need to supply any actual arguments
between them (as in your example).

Tony.

Alternatively, you can typedef a unbracketed name and just use it, just as
std::string is a typedef of std::basic_string<char, ...>

ben