C OO

gistfile1.c

// Credits to nategoose (http://stackoverflow.com/questions/351733/can-you-write-object-oriented-code-in-c/2733004#2733004)
// modified for clarity

struct stack {
     struct stack_type * type;
     // privates
};
struct stack_type {
     void (* construct)(struct stack * this);
     struct stack * (* operator_new)();
     void (*push)(struct stack * this, thing * t);
     thing * (*pop)(struct stack * this);
     int class_member;
}Stack = {
    .construct = stack_construct,
    .operator_new = stack_operator_new,
    .push = stack_push,
    .pop = stack_pop
};

stack(struct stack *construct);
// others..

int main(int argc, char** argv)
{
    struct stack * st = Stack.operator_new();
    if (!st) {

    } else {
       st->type.push(st, thing2);
    }

    return 0;
}