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Input and Output Functions

Explore how to manage input and output streams in C++. Learn to use formatted input with the extraction operator and unformatted input methods. Understand output operations with the insertion operator and manage stream data for files and strings. Gain practical knowledge to handle C++ streams effectively.

Input

You can read in C++ in two way from the input stream: Formatted with the extractor >> and unformatted with explicit methods.

Formatted Input

The extraction operator >>

  • is predefined for all built-in types and strings,
  • can be implemented for user-defined data types,
  • can be configured by format specifiers.

🔑 std::cin ignores by default leading whitespace

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