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This compliant solution complies with VOID MEM31MEM34-CPP. Free dynamically allocated memory exactly onceOnly free memory allocated dynamically, however, while handling resource cleanup in catch clauses does work, it can have several disadvantages:
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Related Guidelines
| CERT C++ Secure Coding Standard | VOID MEM31-CPP. Free dynamically allocated memory exactly once MEM32-CPP. Detect and handle memory allocation errors MEM34-CPP. Only free memory allocated dynamically |
Bibliography
| [ISO/IEC 14882-2014] | 15.2, "Constructors and Destructors" |
| [Meyers 96] | Item 9: "Use destructors to prevent resource leaks". |
| [Stroustrup 2001] | "Exception-Safe Implementation Techniques" |
| [Cline 2009] | 17.2, "I'm still not convinced: a 4-line code snippet shows that return-codes aren't any worse than exceptions; |