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C23 conventions use [[nodiscard]] to catch ignored drawing results

abner.page 4 min read Editor score 6/10

One convention marks drawing functions [[nodiscard]] because callers need the returned rectangle for later logic, while allowing explicit handling when the value is unused. It’s a practical example of using newer C features to prevent bugs in a maintained project.

What

- A C23 convention uses [[nodiscard]] for drawing functions whose returned rectangle callers should inspect.

How

- [[maybe_unused]] lets callers intentionally retain and ignore a result without triggering unused-variable errors.

Why it matters

- These annotations help engineers catch business-logic mistakes while keeping intentional exceptions explicit.

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