C++ / Basic

C++ β€” Basic

Build C++20 programs with initialized values, validated control flow, and owning value types.

6 lessons Β· No account required

What you will learn

  • Compile complete examples and predict defined outputs.
  • Design functions and small classes with explicit contracts.

  1. Build and understand a C++20 program

    Follow source text through compilation and linking, then distinguish a reproducible result from a diagnostic or an unsupported feature.

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  2. Values, types, and safe initialization

    Choose representations deliberately, initialize every local value, and reason about arithmetic without assuming a particular machine layout.

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  3. Control flow and validated input

    Turn requirements into branches and loops with explicit boundaries, then keep invalid input from entering your calculation.

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  4. Functions, references, and contracts

    Express a calculation as a small interface, choose how arguments cross it, and prevent references from outliving the objects they identify.

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  5. Strings, vectors, and valid access

    Use owning standard containers for text and sequences, and reason about indices, iteration, and invalidation before accessing their elements.

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  6. Classes, invariants, and composition

    Build a small value type that starts valid, exposes meaningful operations, and keeps related state consistent through construction and use.

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