Typedef and Structs

[kasiyil]

Hello everyone,

I have a question about using typedef with structure definitions. Here
is the example;

typedef struct MyStruct {
...
..
..
} MyStruct_t;

What is the effect of using typedef in this example? What is the
difference of it between the example below

struct MyStruct_t {
...
..
..
};

Thanks for your answers...

 

[Victor Bazarov]

I have a question about using typedef with structure definitions.
Here is the example;

typedef struct MyStruct {
...
..
..
} MyStruct_t;

What is the effect of using typedef in this example? What is the
difference of it between the example below

struct MyStruct_t {
...
..
..
};

The effect is that in the former case you have two names, 'MyStruct',
a type-id, and 'MyStruct_t', a typedef-id, which is a synonym for it;
and in the latter case you have only one name, 'MyStruct_t' which is
a type-id. The difference is minimal, as you can see.

V

 

[Bart]

kasiyil wrote:

typedef struct MyStruct {
...
..
..
} MyStruct_t;

What is the effect of using typedef in this example? What is the
difference of it between the example below

struct MyStruct_t {
...
..
..
};

In C it is necessary to use a typedef if you want to refer to a struct
type without using the keyword struct. In C++ this is no longer
necessary, but there is lots of legacy code that still does this.

Regards,
Bart.