Function pointer

[programmerc]

Hi! I want to have a function pointer inside a typedef struct but I get a segmentation fault when I run my code. Here's my code:

#include <stdio.h>

typedef struct Foo {
	void (*bar)(int);
} Foo;


void func(int x) {
    printf("display: %d\n", x);
}


int main() {
	Foo* foo = NULL;


	foo -> bar = &func;


    foo -> bar(1);
    
    return 0;
}

Thanks

[Salem]

You could try making foo point somewhere, rather than at NULL.

[programmerc]

Haha I'm sorry I forgot to use malloc.

Foo* foo = (Foo*)malloc(sizeof(Foo));