int DArray_contract(DArray * array)
{
int new_size = array->end < (int)array->expand_rate ?
(int)array->expand_rate : array->end;
return DArray_resize(array, new_size + 1);
}
int DArray_expand(DArray *array) {
size_t old_max = array->max;
check(DArray_resize(array, array->max + array->expand_rate) == 0,
"failed to expand to new size: %d", array->max + (int)array->expand_rate);
memset(array->contents + old_max, 0, array->expand_rate + 1);
return 0;
error:
return -1;
}
int DArray_expand(DArray *array) {
size_t old_max = array->max;
check(
DArray_resize(array, array->max + array->expand_rate),
"Failed to resize array to new size %d",
array->max + (int)array->expand_rate
);
// look forward to the start of the new data (array->contents + old_max)
// set all the data between there and the size of the new block to 0
memset(array->contents + old_max, 0, array->expand_rate + 1);
return 0;
error:
return -1;
}
/* bring the array size down to max(array->end, array->expand_rate) */
int DArray_contract(DArray *array) {
return DArray_resize(array, DArray_max(array->end, (int) array->expand_rate) + 1);
}
int DArray_contract(DArray *array) //always getting bigger
{
int new_size = array->end < (int)array->expand_rate ? (int)array->expand_rate : array->end;
return DArray_resize(array, new_size + 1);
}