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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>

Remarks

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

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

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

  • SIG_SGE
    Indicates an error occurred in the signal.

  • SIG_ACK
    Indicates an acknowledgement was received.

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

See Also

Concepts

signal

Global Constants