C++ Programming Tutorial

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Templates

Templates enable generic programming. Write a function or class once and reuse it for many types. The compiler generates type-specific code at compile time.

Generic Add

#include \n\ntemplate\nT add(T a, T b) { return a + b; }\n\nint main(){\n    std::cout << add(2,3) << "\n";\n    std::cout << add(2.5,3.5) << "\n";\n    return 0;\n}

Notes

Use `template` (or `class T`) to declare type parameters.
Standard containers (like `std::vector`) are implemented with templates.

Next: Standard Template Library Classes

Keep Practicing

Use the online compiler to run examples and test variations. Reinforce learning by building small programs for each topic.