如何使用#define访问c中的struct成员

typedef struct {
    int a;
    float b;
    char c;
} MyStruct;

#define ACCESS_STRUCT_MEMBER(struct_ptr, member) ((struct_ptr)->member)

int main() {
    MyStruct my_struct;
    my_struct.a = 1;
    my_struct.b = 2.0;
    my_struct.c = 'a';

    printf("a: %d\n", ACCESS_STRUCT_MEMBER(&my_struct, a));
    printf("b: %.1f\n", ACCESS_STRUCT_MEMBER(&my_struct, b));
    printf("c: %c\n", ACCESS_STRUCT_MEMBER(&my_struct, c));

    return 0;
}