Question

How to use function pointer in struct with C

Answer 1

#include <stdio.h>

typedef struct user user;

struct user
{
    int id;
    char name[32];

    void (*funcPtr)(user*);
};

void print_user(user* u) {
    printf("%i %s", u->id, u->name);
}

int main()
{
    user u = { .id = 123, .name = "abcd", .funcPtr = &print_user };

    u.funcPtr(&u);

    return 0;
}



/*
run:

123 abcd

*/

 

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