templates and function pointers

[Andy White]

If I want a pointer to a function that returns void and takes as it's
arguments a pointer to a templatized type and a const int, does this need to
be declaired in global scope? I'm not sure of the syntax with the template
part..

template <class T>
void (*f)(T *, const int);

thanks.

 

[Kai-Uwe Bux]

If I want a pointer to a function that returns void and takes as it's
arguments a pointer to a templatized type and a const int, does this need
to be declaired in global scope? I'm not sure of the syntax with the
template part..

template <class T>
void (*f)(T *, const int);

thanks.

Do you want to declare a type or a variable? Anyway, neither templated
typedefs nor templated variables exist. What about:

template < typename T >
struct xxx {

typedef void (*T_function)( T*, int );

};

int main ( void ) {
xxx<int>::T_function f;
}



Best

Kai-Uwe Bux

 

[Andy White]

Do you want to declare a type or a variable? Anyway, neither templated
typedefs nor templated variables exist. What about:

template < typename T >
struct xxx {

typedef void (*T_function)( T*, int );

};

int main ( void ) {
xxx<int>::T_function f;
}



Best

Kai-Uwe Bux

That works great, thanks.