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start working on runtime oop

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This commit is contained in:
William Bell
2025-08-02 20:17:24 +01:00
parent 8ea69cce67
commit a7d7ded803
19 changed files with 142 additions and 71 deletions
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21
src/dynamic_array/darray.c
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@@ -8,17 +8,14 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../memory.h"
void darray_init(DArray *arr, size_t element_size) {
arr->element_size = element_size;
arr->size = 0;
arr->capacity = CHUNK_SIZE;
arr->data = malloc(CHUNK_SIZE * element_size);
arr->capacity = CHUNK_SIZE / element_size;
arr->data = checked_malloc(CHUNK_SIZE); // fixed byte allocation
arr->resizable = true;
if (!arr->data) {
fprintf(stderr, "darray_init: allocation failed\n");
exit(EXIT_FAILURE);
}
}
void darray_resize(DArray *arr, size_t new_size) {
@@ -26,9 +23,17 @@ void darray_resize(DArray *arr, size_t new_size) {
fprintf(stderr, "darray_resize: unresizable darray\n");
exit(EXIT_FAILURE);
}
size_t new_capacity = ((new_size + CHUNK_SIZE) / CHUNK_SIZE) * CHUNK_SIZE;
// Determine number of full chunks needed to store new_size elements
size_t required_bytes = new_size * arr->element_size;
size_t new_capacity_bytes = ((required_bytes + CHUNK_SIZE - 1) / CHUNK_SIZE) * CHUNK_SIZE;
size_t new_capacity = new_capacity_bytes / arr->element_size;
if (!new_capacity) {
return;
}
if (new_capacity != arr->capacity) {
void *new_data = realloc(arr->data, new_capacity * arr->element_size);
void *new_data = realloc(arr->data, new_capacity_bytes);
if (!new_data) {
fprintf(stderr, "darray_resize: reallocation failed\n");
exit(EXIT_FAILURE);