Tag: tutorial
All the articles with the tag "tutorial".
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static_cast vs dynamic_cast in C++: Which One to Use
static_cast is checked at compile time and costs nothing. dynamic_cast checks the real type at runtime and fails safely. When to use each.
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How to Get the Size of a Vector in C++
Use v.size() to get the number of elements in a C++ vector. Covers size vs capacity, the unsigned size_t trap, empty(), and 2D vectors.
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How to Convert String to int in C++: stoi, atoi, and stringstream
Updated:Learn how to convert a string to int in C++ using stoi, atoi, and stringstream. Includes error handling, examples, and when to use each method safely.
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How to Append to a File in C++ (std::ios::app)
Updated:Append text to an existing file in C++ with ofstream and std::ios::app. Learn app vs ate vs trunc, how to avoid overwriting your file, and how to log safely.