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array_list improvements.
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@ -14,20 +14,24 @@ public:
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~array_list();
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size_t size();
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int32_t append(T value);
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int32_t push(T value);
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T pop();
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T replace(T old_value, T new_value);
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int32_t index_of(T value);
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bool is_empty();
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T & operator[](size_t index);
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};
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template<typename T>
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array_list<T>::array_list() {
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_size = 0;
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_capacity = INITIAL_CAPACITY;
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_data = (T *) malloc(sizeof(T) * _capacity);
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}
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template<typename T>
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array_list<T>::~array_list() {
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delete _data;
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free(_data);
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}
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template<typename T> size_t
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@ -37,6 +41,11 @@ array_list<T>::size() {
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template<typename T> int32_t
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array_list<T>::append(T value) {
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return push(value);
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}
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template<typename T> int32_t
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array_list<T>::push(T value) {
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if (_size == _capacity) {
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_capacity = _capacity * 2;
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_data = (T *) realloc(_data, _capacity * sizeof(T));
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@ -45,6 +54,12 @@ array_list<T>::append(T value) {
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return _size - 1;
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}
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template<typename T> T
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array_list<T>::pop() {
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T value = _data[-- _size];
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return value;
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}
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/**
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* Replaces the old_value in the list with the new_value.
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* Returns the old_value if the replacement succeeded, or NULL otherwise.
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@ -74,4 +89,9 @@ array_list<T>::operator[](size_t index) {
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return _data[index];
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}
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template<typename T> bool
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array_list<T>::is_empty() {
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return _size == 0;
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}
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#endif /* ARRAY_LIST_H */
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