Struct with template variables in C++

Question

I'm playing around with templates. I'm not trying to reinvent the std::vector, I'm trying to get a grasp of templateting in C++.

Can I do the following?

template <typename T> typedef struct{   size_t x;   T *ary; }array; 

What I'm trying to do is a basic templated version of:

typedef struct{   size_t x;   int *ary; }iArray; 

It looks like it's working if I use a class instead of struct, so is it not possible with typedef structs?

Answer 1

The problem is you can't template a typedef, also there is no need to typedef structs in C++.

The following will do what you need

template <typename T>  struct array {    size_t x;    T *ary;  };  

Answer 2

template <typename T> struct array {   size_t x;   T *ary; };