The C Language facilities setjmp() and longjmp() can be used as a poor attempt to simulate the throwing and catching of exceptions, but they are very low-level facilities, and using them can bypass proper resource management and the proper calling of destructors.
The C++ Standard ISO/IEC 14882-2003, section 18.7 paragraph 4. says:
The function signature longjmp(jmp_buf jbuf, int val) has more restricted behavior in this International Standard. A setjmp/longjmp call pair has undefined behavior if replacing the setjmp and longjmp by catch and throw would destroy any automatic objects.
Non-Compliant Code Example
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Rule | Severity | Likelihood | Remediation Cost | Priority | Level |
|---|---|---|---|---|---|
RES39-C | 1 (low) | 2 (probable) | 2 (medium) | P4 | L3 |
References
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\[[ISO/IEC 14882-2003|AA. C++ References#ISO/IEC 14882-2003]\] Section 18.7
\[[Henricson 97|AA. C++ References#Henricson 97]\] Rule 13.3 Do not use {{setjmp()}} and {{longjmp()}}. |
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