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#pragma once
#include <cstdlib>
#include <cstring>
#include "Logger.h"
#define FOREACH(list) \
for (size_t idx = 0; idx < list.numElements; idx++) \
if (auto value = list.getValue(idx)) \
template <typename T>
struct List {
T* data = nullptr;
size_t capacity = 0;
size_t numElements = 0;
bool growDynamically = true;
void allocate(size_t size);
void add(T* element);
void add(T& element);
void add(T&& element);
bool grow(size_t newSize);
void set(T* value, size_t index);
void remove(size_t index);
void clear();
void deallocate();
bool isEmpty() {
return data == nullptr || numElements == 0;
}
T* getValue(int index) const;
T& operator[](int idx) const;
void binarySort(int (*f)(T *first, T* second));
void setFromArray(T* arry, int size) {
allocate(size);
memcpy(data, arry, size * sizeof(T));
numElements = size;
}
void remove(int index) {
if (index >= numElements) {
logger_error("Cannot remove element at index: %d", index);
return;
}
if (index == numElements - 1) {
numElements--;
return;
}
memmove(data[index], data[index + 1], sizeof(T) * (numElements - index));
numElements--;
}
};
template <typename T>
void List<T>::allocate(size_t size) {
if (size == 0 || size == capacity) {
numElements = 0;
return;
}
if (data != nullptr) {
deallocate();
}
data = static_cast<T*>(malloc(sizeof(T) * size));
capacity = size;
numElements = 0;
}
template <typename T>
bool List<T>::grow(size_t newSize) {
if (!growDynamically) {
return false;
}
if (newSize == 0) {
return false;
}
T* newData = static_cast<T*>(malloc(sizeof(T) * newSize));
if (data != nullptr) {
memcpy(newData, data, numElements * sizeof(T));
delete data;
}
data = newData;
capacity = newSize;
return true;
}
template <typename T>
void List<T>::set(T* value, size_t index) {
if (index >= capacity && !grow(index * 2)) {
return;
}
memcpy(&data[index], value, sizeof(T));
}
template <typename T>
void List<T>::add(T* element) {
if (data == nullptr) {
allocate(2);
}
if (element == nullptr) {
logger_error("Element not defined");
return;
}
size_t newNumElements = numElements + 1;
if (newNumElements > capacity) {
if (!grow(2 * capacity)) {
logger_error("Trying to add to list but unable to grow the array");
return;
}
}
memcpy(&data[numElements], element, sizeof(T));
numElements = newNumElements;
}
template <typename T>
void List<T>::add(T& element) {
if (data == nullptr) {
allocate(2);
}
size_t newNumElements = numElements + 1;
if (newNumElements > capacity) {
if (!grow(2 * capacity)) {
logger_error("Trying to add to list but unable to grow the array");
return;
}
}
memcpy(&data[numElements], &element, sizeof(T));
numElements = newNumElements;
}
template <typename T>
void List<T>::add(T&& element) {
if (data == nullptr) {
allocate(2);
}
size_t newNumElements = numElements + 1;
if (newNumElements > capacity) {
if (!grow(2 * capacity)) {
logger_error("Trying to add to list but unable to grow the array");
return;
}
}
memcpy(&data[numElements], &element, sizeof(T));
numElements = newNumElements;
}
template <typename T>
void List<T>::remove(size_t idx) {
if (idx >= numElements) {
logger_error("Index is outside of the list: %d >= %d", idx, numElements);
return;
}
for (; idx < numElements - 1; idx++) {
data[idx] = data[idx + 1];
}
numElements--;
}
template <typename T>
void List<T>::deallocate() {
if (data != nullptr) {
free(data);
data = nullptr;
}
capacity = 0;
numElements = 0;
}
template <typename T>
void List<T>::clear() {
numElements = 0;
}
template <typename T>
T* List<T>::getValue(int idx) const {
return &data[idx];
}
template <typename T>
T& List<T>::operator[](int idx) const {
return data[idx];
}
template <typename T>
void List<T>::binarySort(int (*f)(T *first, T* second)) {
if (data == nullptr) {
return;
}
for (size_t idx = 0; idx < numElements - 1; idx++) {
int minIdx = idx;
T firstValue = data[idx];
for (int innerIdx = idx + 1; innerIdx < numElements; innerIdx++) {\
T secondValue = data[innerIdx];
if (f(&firstValue, &secondValue) > 0) {
minIdx= innerIdx;
}
}
T temp = data[minIdx];
memmove(&data[minIdx], &data[idx], sizeof(T));
memmove(&data[idx], &temp, sizeof(T));
}
}
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