C++ Function and Class Templates

Write generic, type-safe functions and classes for arbitrary datatypes.

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Templates are the foundation of generic programming in C++. The compiler generates a concrete version of the function or class for each specific type passed as a template parameter.

Key Takeaways: C++ Function and Class Templates

Mastering C++ Function and Class Templates helps you write clean and reliable C++ code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

C++ Function and Class Templates Code Example

C++

#include <iostream>

template <typename T>
T getMax(T a, T b) {
    return (a > b) ? a : b;
}

int main() {
    std::cout << "Int max: " << getMax(10, 20) << "\n";
    std::cout << "Double max: " << getMax(5.5, 2.3) << "\n";
    return 0;
}

Output

Int max: 20
Double max: 5.5

Run this example on your own computer. The "Get Started" lesson shows how to set it up.

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C++ Function and Class Templates

💡 Key Takeaways: C++ Function and Class Templates

C++ Function and Class Templates Code Example

Key Takeaways: C++ Function and Class Templates