Tag: vector
4 posts
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[2026] C++ Array vs vector: Performance, Safety, and When to Use Each
C-style arrays, std::array, and std::vector compared: stack vs heap, fixed vs dynamic size, bounds checking, benchmarks, and practical choice guide.
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[2026] C++ vector reserve vs resize: When to Use Which (Complete Guide)
C++ vector reserve vs resize: reserve grows capacity only; resize changes length and initializes elements. Reduce reallocations vs pre-fill—performance ...
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[2026] C++ Iterator Invalidation: “vector iterators incompatible”, Safe erase, and erase–remove
STL iterator invalidation rules for vector, list, map, unordered_* and deque. Fix range-for + mutate bugs, use erase return values, erase–remove idiom, ...
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[2026] C++ std::vector Complete Guide: Usage, Iterators, and Performance
std::vector explained: why it beats raw arrays, reserve vs resize, iterator invalidation, algorithms, 2D vectors, and practical examples with pitfalls.