Undefined behavior in C++ occurs frequently due to issues with object lifetimes, such as dangling references and use-after-free errors. Often, these errors are hidden within layers of abstraction in code. The article explores various examples and solutions to prevent such errors, including best practices for using references, smart pointers, and value semantics. Tools like static analyzers, sanitizers, and proper coding patterns are recommended to mitigate these issues.

24m read timeFrom pvs-studio.com
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Errors in lifetime objects: auto or non-auto, reference is still dangling!Errors in lifetime objects: string_view is just const& but with extra hassleErrors in lifetime objects: a fly in the syntactic sugar (range-based for)Errors in object lifetime: Schrödinger's self-referenceErrors in lifetime objects: std::vector and reference invalidation

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