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Could detect violations of this rule by looking for signal handlers that themselves call signal(). A violation is reported if the call fails and the handler therefore checks errno. A violation also exists if the signal handler modifies errno without first copying its value elsewhere

MISRA C 2012 Rule 22.8

MISRA C 2012 Rule 22.9

MISRA C 2012 Rule 22.10

C2031

DF4781, DF4782, DF4783

MISRA.INCL.SIGNAL.2012
MISRA.STDLIB.SIGNAL

Properly use errno value

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