Wrong syntax for typedef with struct?

Question

I have the following code below.

typedef struct person Person;
    Person {
        char* name;
        int age;
    };

From what I understand, typedef will substitute "struct person" with Person. So when making the struct, it is equal to writing :

    struct person {
        char* name;
        int age;
    };

Is this thinking correct? Because I am getting an error an error of the first line of the struct.

error: expected identifier or ‘(’ before ‘{’ token This error is referring to the line : Person {

Any help is appreciated. Thanks

A typedef is not the same as a macro; it doesn't substitute like that. — Oliver Charlesworth, Mar 30 '14 at 17:00
Ok, if I have the "typedef struct person Person" , how can I make a struct of Person? — Rohan, Mar 30 '14 at 17:01
This answer has some good background on this topic: http://stackoverflow.com/questions/1675351/typedef-struct-vs-struct-definitions — Angst, Mar 30 '14 at 17:05

score 4 · Accepted Answer · answered Mar 30 '14 at 17:02

Do it like this

typedef struct person Person;
struct person  {
        char* name;
        int age;
};

Then you can use Person for all usages of the struct.

also there is no need in different capitalization

typedef struct person person;

would do equally well.

score 3 · Answer 2 · answered Mar 30 '14 at 17:02

3

One way to do what you want is:

struct person {
    char* name;
    int age;
};
typedef struct person Person;

Or, if you want to accomplish this in one instruction, you could do:

typedef struct person {
    char* name;
    int age;
} Person;

answered Mar 30 '14 at 17:02

WileTheCoyot

score 0 · Answer 3 · answered Mar 30 '14 at 17:02

0

A possible way is as follows:

typedef struct {
        char* name;
        int age;
    } Person;

answered Mar 30 '14 at 17:02

avmohan

3 Answers3