vec.c

#include "vec.h"
#include "parser/parser.h"
#include "libc.h"

vector *initialize_vec(int item_size)
{
    vector *v = (vector *)malloc(sizeof(vector));
    v->total = 0;
    v->capacity = 1;
    v->items = (void **)malloc(v->capacity * sizeof(void *));

    return v;
}

void push_vec(vector *vec, void *item)
{
    if (vec->total == vec->capacity)
    {
        int new_cap = vec->capacity * 2;
        void *new_items = realloc(vec->items, new_cap * sizeof(void *));
        if (new_items == NULL)
        {
            fprintf(stderr, "cannot reallocate vector");
            return;
        }
        vec->items = (void **)new_items;
        vec->capacity = new_cap;
    }
    vec->items[vec->total] = item;
    vec->total++;
}

void *get_vec(vector *vec, int index)
{
    if (index >= vec->total)
    {
        fprintf(stderr, "tried to access index greater than vector items: %d\n", index);
        exit(1);
        return NULL;
    }
    void *val = vec->items[index];
    return val;
}