stack.h


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#define STACK_H
#ifdef STACK_H
#include <stdbool.h>
#include <stdlib.h>

typedef struct stack {
    void* *data;
    int top;
    size_t capacity;
} stack;


stack* new_stack(size_t size);

void* peek(stack *s);
void* pop(stack *s);
void* push(stack* s, void* data);
bool stack_is_empty(stack *s);
void free_stack(stack *s);

#endif