Difference between 'struct' and 'typedef struct' in C++?

Question

In C++, is there any difference between:

struct Foo { ... };

and:

typedef struct { ... } Foo;

Answer 1

You can't use forward declaration with the typedef struct.

The struct itself is an anonymous type, so you don't have an actual name to forward declare.

typedef struct{
    int one;
    int two;
}myStruct;

A forward declaration like this wont work:

struct myStruct; //forward declaration fails

void blah(myStruct* pStruct);

//error C2371: 'myStruct' : redefinition; different basic types