Tag: tutorial
All the articles with the tag "tutorial".
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How to Use Pointers in C++: A Complete Beginner's Guide
Updated:Learn how to use pointers in C++ with clear mental models and real code examples. Understand addresses, dereferencing, and why pointers matter, step by step.
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C++ Array Length: How to Get the Size of an Array (5 Ways)
Updated:Get the length of an array in C++ five ways: sizeof, std::size, std::array, vector .size(), and inside a function. Copy-paste examples for every case.
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C++ Program to Count Vowels in a String (3 Ways)
Write a C++ program to count vowels in a string. Learn the loop approach, a switch version, and the STL one-liner with count_if, plus handling uppercase.
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push_back vs emplace_back in C++: What's the Real Difference?
Understand push_back vs emplace_back in C++ with working examples. See exactly when emplace_back avoids a copy, when it does not, and which one to use.