Core · Module 7 · Lesson 9 of 11
STL Value Types: pair, tuple, array, string_view, bitset and numeric_limits
Carry small structured values, borrow text safely, represent fixed bits, and use numeric_limits to make boundaries explicit.
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By the end you can
- Choose pair, tuple, structured bindings or a named type for returned values
- Use array, string_view and bitset without violating ownership or lifetime
- Query numeric_limits instead of guessing type ranges and sentinel values
Builds on Modern Standard-Library Tools: optional, variant, span and ranges.
01 · A question first
A lookup returns two related values, a parser borrows a token, and a protocol exposes exactly 32 flags. These are not reasons to invent ad-hoc classes or sentinel integers; the standard library already describes each value's shape and lifetime.
Make a guess before you read on.
02 · The idea
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What's inside
- Small structured results
- Borrowed text with string_view
- Fixed bits and numeric boundaries
- Interoperability and review
- Where it is used
- API examples and failure boundaries
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