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 Often used in Unix systems  Facilities for handling exceptional conditions that arise during execution: - interrupt signal from an external source - an error in execution. void (*signal(int sig, void (*handler) (int))) (int)  signal determines how subsequent signals will be handled  If handler is SIG_DFL , the implementation-defined default behavior is used,  if it is SIG_IGN , the signal is ignored  otherwise, the function pointed to by handler will be called, with the argument of the type of signal ... zobacz całą notatkę

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