signal Action Constants
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signal Action Constants

The action taken when the interrupt signal is received depends on the value of func.

#include <signal.h>

The func argument must be either a function address or one of the manifest constants listed below and defined in SIGNAL.H.


Uses system-default response. If the calling program uses stream I/O, buffers created by the run-time library are not flushed.


Ignores interrupt signal. This value should never be given for SIGFPE, since the floating-point state of the process is left undefined.


Indicates an error occurred in the signal.


Indicates an acknowledgement was received.


A return type from a signal indicating an error has occurred.

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