Is typedef a user-defined data type?

Question

I came to know that enum, union and struct are user-defined data type but in some articles type-def is also mentioned as user-defined data type. So which is true?

Answer 1

Hi,

typedef allows you to give a new name to user-defined data type.

typedef is used to improve code readability.

#include <stdio.h>
typedef struct Sample {
    char name[50];
    int id;
} typedef_Sample;
int main()
{
    typedef_Sample sp;
    strcpy(sp.name, "hello");
    sp.id = 10;
    printf("%s,%d", sp.name, sp.id);
    return 0;
}

Best regards,

Minxin Yu

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