dynamic_array.c

//
// Created by johann on 04/02/17.
//

#include "dynamic_array.h"
#include "misc.h"


void init_array(s_array *my_array, size_t initial_size) {
    my_array->array = (char *) malloc(initial_size * sizeof(char));
    my_array->used = 0;
    my_array->size = initial_size;

}

void insert_in_array(s_array *my_array, char element) {
    // if we don't have any more room then we multiply size by 2 and realloc
    if (my_array->used == my_array->size) {
        my_array->size *= 2;
        my_array->array = (char *) (realloc(my_array->array, my_array->size * sizeof(char)));

    }
    if (my_array->used == 0) {
        my_array->array[0] = element;
        ++my_array->used;
    } else if (my_array->used > 0) {
        my_array->array[my_array->used] = element;
        ++my_array->used;
    }
}

void free_array(s_array *my_array) {
    free(my_array->array);
    my_array->array = NULL;
    my_array->used = 0;
    my_array->size = 0;
}

void reinitialise_array(s_array *to_reint) {
    free_array(to_reint);
    init_array(to_reint, 1);
}

void concatenate(s_array *left, s_array *right) {
    for (int i = 0; i < right->used; ++i) {
        insert_in_array(left, right->array[i]);
    }
    free_array(right);
}