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array.c
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array.c
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#include "Headers/array.h"
//Initialize an empty array
void initArray(struct Array *A, size_t initialSize)
{
A->array = malloc(sizeof(uint8_t) * initialSize);
if(A->array == NULL){
freeArray(A);
}
A->used = 0;
A->size = initialSize;
}
//Initialize array filled with zeroes
void initZArray(struct Array *A, size_t initialSize)
{
A->array = calloc(initialSize, sizeof(uint8_t));
if(A->array == NULL){
freeArray(A);
}
A->used = 0;
A->size = initialSize;
}
//Increment the size of the array by one and double the size if in need
void insertArray(struct Array *A)
{
if(A->used == A->size)
{
A->size *= 2;
void *p = realloc(A->array, A->size * sizeof(uint8_t));
if(p != NULL)
A->array = p;
else
exit(EXIT_FAILURE);
}
A->used++;
}
//Decrement the size of the array by one
void deleteArray(struct Array *A)
{
if(A->used-- == A->size >> 2){
A->size >>= 2;
void *p = realloc(A->array, A->size * sizeof(uint8_t));
if(p != NULL)
A->array = p;
else
exit(EXIT_FAILURE);
}
A->used++;
}
//Frees the array
void freeArray(struct Array *A)
{
A->array = NULL;
A->used = 0;
A->size = 0;
free(A->array);
}