Blog
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C++ Array vs vector: Performance, Safety, and When to Use
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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C++ string vs string_view: Fast, Non-Owning String Handling
std::string vs std::string_view: avoid copies in read-only APIs, allocation costs, lifetime rules, substring performance, and null-termination caveats.
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C++ struct vs class | Access Control·POD
C++ struct vs class difference is only default public/private, functionality is identical.
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C++ malloc vs new vs make_unique
C++ malloc vs new vs make_unique: Complete memory allocation comparison. Differences in constructor calling, exception safety, RAII.
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C++ vector reserve vs resize: When to Use Which
C++ vector reserve vs resize: reserve grows capacity only; resize changes length and initializes elements.
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C++ std::optional vs Pointers: Representing No Value
std::optional vs nullptr: optional models absent values with type safety; pointers for non-owning observers, polymorphism, and shared ownership.
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C++ emplace vs push: Performance, Move Semantics,
Master C++ emplace vs push: in-place construction, move semantics, copy elision, performance benchmarks, perfect forwarding, common pitfalls (explicit.
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C++ std::function vs Function Pointers: Flexibility vs Speed
std::function vs raw function pointers: pointers are faster and smaller; std::function type-erases lambdas with captures and functors.
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C++ std::variant vs union Complete Comparison
Master C++ sum types: std::variant (type-safe, std::visit, exceptions) vs union (unsafe, manual tracking, legacy).
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C++ std::any vs void* Complete Comparison
Master C++ type erasure: std::any (type-safe, runtime checks, exceptions) vs void* (unsafe, manual casting, legacy).