example_usage/example_header.c - master - bvs22/draft

example_usage/example_header.c
83 строки2 KB
Batomunkuev Vladimir
Add header files examples and documentation
05 дек 2024, 12:30
05 дек 2024, 12:3082e06a5
/*
 * Файл реализации example_header.c
 * Реализация функций, объявленных в example_header.h
 */

#include "example_header.h"
#include <math.h>  // для sqrt() в calculate_distance

/* Реализация структуры List */
struct List {
    int* data;
    int size;
    int capacity;
};

/* Глобальные переменные */
int global_error_code = 0;

/* Реализация функций */

List create_list(int initial_capacity) {
    List list = (List)malloc(sizeof(struct List));
    if (list == NULL) {
        global_error_code = ERROR_OUT_OF_MEMORY;
        return NULL;
    }

    list->data = (int*)malloc(initial_capacity * sizeof(int));
    if (list->data == NULL) {
        free(list);
        global_error_code = ERROR_OUT_OF_MEMORY;
        return NULL;
    }

    list->size = 0;
    list->capacity = initial_capacity;
    return list;
}

ErrorCode list_add(List list, int value) {
    if (list == NULL) {
        return ERROR_NULL_POINTER;
    }

    if (list->size >= list->capacity) {
        int new_capacity = list->capacity * 2;
        int* new_data = (int*)realloc(list->data, new_capacity * sizeof(int));
        if (new_data == NULL) {
            return ERROR_OUT_OF_MEMORY;
        }
        list->data = new_data;
        list->capacity = new_capacity;
    }

    list->data[list->size++] = value;
    return SUCCESS;
}

ErrorCode list_get(List list, int index, int* value) {
    if (list == NULL || value == NULL) {
        return ERROR_NULL_POINTER;
    }

    if (index < 0 || index >= list->size) {
        return ERROR_INVALID_ARGUMENT;
    }

    *value = list->data[index];
    return SUCCESS;
}

void destroy_list(List list) {
    if (list != NULL) {
        free(list->data);
        free(list);
    }
}

double calculate_distance(Point p1, Point p2) {
    int dx = p2.x - p1.x;
    int dy = p2.y - p1.y;
    return sqrt(dx * dx + dy * dy);
}