The C++ Standard Library is a collection of classes and functions that provide essential tools for C++ programming. It includes components like containers, algorithms, strings, and streams. Let's explore its core features!

📦 Containers

Containers manage collections of objects. Key types include:

  • vector: Dynamic array (e.g., std::vector<int> nums;)
  • deque: Double-ended queue
  • list: Doubly linked list
  • map: Associative array (e.g., std::map<std::string, int> data;)
std_container

⚙️ Algorithms

Algorithms operate on containers. Examples:

  • std::sort() for sorting
  • std::find() to locate elements
  • std::transform() for data manipulation

💡 Need help with algorithm implementation? Check our guide on std algorithms for detailed examples!

📜 Strings

The <string> header provides std::string for text handling:

std::string greeting = "Hello, world!";
std::cout << greeting.length() << std::endl; // Output: 13
std_string

📦 Streams

Streams handle input/output operations:

  • std::cin for input
  • std::cout for output
  • std::ifstream/std::ofstream for file operations

📚 Further Reading

For advanced topics like memory management or concurrency, visit our C++ Standard Library Deep Dive tutorial.