How do I use template libraries in C++?

How do I use template libraries in C++?

Template libraries in C++ allow you to create generic and reusable code. You can use the Standard Template Library (STL) which includes containers like vectors, lists, and algorithms.

Can you give me an example of using a vector?

Sure! Here's a simple example:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> numbers;
    numbers.push_back(10);
    numbers.push_back(20);
    numbers.push_back(30);

    for(int num : numbers) {
        std::cout << num << " ";
    }
    return 0;
}

What are the advantages of using template libraries?

The advantages include code reusability, type safety, and the ability to work with any data type without rewriting code.

Are there any performance considerations I should be aware of?

Yes, template instantiation can lead to code bloat if used excessively, and some templates may have performance overhead due to type deductions.