Accidental rethrow¶

ID: cpp/rethrow-no-exceptionKind: problemSecurity severity: Severity: warningPrecision: highTags:   - reliability   - correctness   - exceptionsQuery suites:   - cpp-security-and-quality.qls

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The C++throw expression can take several forms. One form throws a new exception, whereas the other re-throws the current exception. In the latter case, if there is no current exception, then the program will be terminated. Presence of a re-throw outside of an exception handling context is often caused by the programmer not knowing what kind of exception to throw.

voidbad(){/* ... */if(error_condition)throw;}voidgood(){/* ... */if(error_condition)throwstd::exception("Something went wrong.");}