65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
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#include <c_PtrArrayBag.h>
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#include <c_Memory.h>
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#define DEFAULT_INIT_CAPACITY 4
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c_err_t c_PtrArrayBag_Init(c_PtrArrayBag_t* self, c_size_t capacity) {
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if (!self) return C_ERR_PARAM;
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self->capacity = (capacity > 0) ? capacity : DEFAULT_INIT_CAPACITY;
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self->size = 0;
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self->array = (void**)C_ALLOC(self->capacity * sizeof(void*));
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if (!self->array) {
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self->capacity = 0;
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return C_ERR_NOMEM;
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}
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return C_ERR_SUCCESS;
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}
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void c_PtrArrayBag_Destroy(c_PtrArrayBag_t* self) {
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if (!self) return;
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C_FREE(self->array);
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self->capacity = 0;
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self->size = 0;
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}
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c_err_t c_PtrArrayBag_Add(c_PtrArrayBag_t* self, void* item) {
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if (!self || !self->array) return C_ERR_PARAM;
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// Handle dynamic resizing (doubling capacity)
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if (self->size >= self->capacity) {
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const c_size_t new_capacity = self->capacity << 1;
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void** new_array = (void**)C_REALLOC(self->array, new_capacity * sizeof(void*));
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if (!new_array) {
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return C_ERR_NOMEM;
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}
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self->array = new_array;
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self->capacity = new_capacity;
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}
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self->array[self->size++] = item;
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return C_ERR_SUCCESS;
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}
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void* c_PtrArrayBag_Get(c_PtrArrayBag_t* self, c_size_t index) {
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if (!self || !self->array || index >= self->size) {
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return NULL;
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}
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return self->array[index];
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}
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c_err_t c_PtrArrayBag_Remove(c_PtrArrayBag_t* self, c_size_t index) {
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if (!self || !self->array) return C_ERR_PARAM;
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if (index >= self->size) return C_ERR_INDEX;
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// Shift elements left to fill the gap
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if (index < self->size - 1) {
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const c_size_t elements_to_move = self->size - index - 1;
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memmove(&self->array[index], &self->array[index + 1], elements_to_move * sizeof(void*));
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}
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self->size--;
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self->array[self->size] = NULL; // Optional clear for safety
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return C_ERR_SUCCESS;
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}
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