MyVector is a feature-complete, generic and customizable resizable array implementation in C++ that supports almost the entire C++ std::vector API.
- Measurement of the execution time difference between std::vector and custom vector class
- Doxygen documentation describing each and every implemented method
- Unit testing (using googletest)
Difference in the execution time between std::vector and MyVector using .push_back()
| Data Structure | 10000 | 100000 | 1000000 | 10000000 | 100000000 | Total |
|---|---|---|---|---|---|---|
| std::vector | 0.000174602s | 0.00123856s | 0.0125634s | 0.144284s | 1.37746s | 1.53572s |
| MyVector | 0.000134863s | 0.00139039s | 0.0136582s | 0.166781s | 1.58274s | 1.76471s |
Appends the given element value to the end of the container
void push_back(const T &val) {
if (avail == limit)
grow();
unchecked_append(val);
}MyVector<int> example;
for(int i = 0; i < 5; ++i)
example.push_back(i);
std::cout << "Vector elements: "; // 0 1 2 3 4
for (int i: example)
std::cout << i << ' ';
std::cout << "Vector size: " << example.size() << std::endl; // 5
std::cout << "Vector capacity: " << example.capacity() << std::endl; // 8
Removes the last element of the container
void pop_back() {
iterator new_avail = avail;
alloc.destroy(--new_avail);
avail = new_avail;
}MyVector<int> example {1,2,3,4,5};
example.pop_back();
std::cout << "Vector size: " << example.size() << std::endl; // 4
std::cout << "Vector capacity: " << example.capacity() << std::endl; // 5
Requests the removal of unused capacity
void shrink_to_fit() {
if (limit > avail)
limit = avail;
}MyVector<int> example {1,2,3,4,5};
example.reserve(500);
std::cout << "Vector size: " << example.size() << std::endl; // 5
std::cout << "Vector capacity: " << example.capacity() << std::endl; // 500
example.shrink_to_fit();
std::cout << "Vector size: " << example.size() << std::endl; // 5
std::cout << "Vector capacity: " << example.capacity() << std::endl; // 5
Navigate to the directory of choice and clone the project
git clone https://github.com/tmneth/vector.gitInitialise and update google test submodules
git submodule init
git submodule updateCompile the program
cd vector/src && g++ 'main.cpp' -o 'main' && ./main
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