cieter/src/cieter/dynarray.c

56 lines
1.0 KiB
C

#include "cieter_dynarray.h"
struct dyn_array {
char **array;
size_t size;
size_t capacity;
};
CieterDynArray *cieter_dynarray_init(size_t initial_capacity) {
CieterDynArray *da = malloc(sizeof(CieterDynArray));
da->size = 0;
da->capacity = initial_capacity;
return da;
}
void cieter_dynarray_add(CieterDynArray *da, const char *s) {
// An empty dynarray does not have an allocated internal array yet
if (da->size == 0) {
da->array = malloc(sizeof(char*) * da->capacity);
}
// Double array size if it's full
else if (da->size == da->capacity) {
da->array = realloc(da->array, da->capacity * 2);
da->capacity *= 2;
}
da->array[da->size] = strdup(s);
da->size++;
}
void cieter_dynarray_free(CieterDynArray *da) {
if (da == NULL) {
return;
}
if (da->array != NULL) {
for (size_t i = 0; i < da->size; i++) {
free(da->array[i]);
}
free(da->array);
}
free(da);
}
char **cieter_dynarray_convert(CieterDynArray *da) {
char **array = da->array;
da->array = NULL;
cieter_dynarray_free(da);
return array;
}