Back to Basics: Exception Handling and Exception Safety
summary
Explains concrete rules: throw objects by value and catch by reference, prefer std::exception subclasses like std::out_of_range, and use RAII to close files during stack unwinding. Shows a file example where G throws a catastrophic_failure and how calling G first and staging results in locals gives the strong guarantee (commit/rollback). Recommends making destructors, operator delete and swap noexcept, demonstrates swap-based commit to implement strong safety, and contrasts table‑based vs dynamic registration exception implementations for performance.
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chapters (7)
- 0:00Introduction to exceptions
- 7:20Why exception handling
- 13:04Throwing and catching exceptions
- 23:48Exception safety guarantees
- 30:14RAII and resource management
- 46:07When to use exceptions
- 56:45Exceptions in practice
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