SIG_DFL, SIG_IGN

 

C

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Program support utilities

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abort exit quick_exit (C++11) _Exit (C++11)	atexit at_quick_exit (C++11) EXIT_SUCCESS EXIT_FAILURE
Communicating with the environment
system	getenv
Signals
signal raise	SIG_DFL SIG_IGN SIG_ERR
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setjmp
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Types
jmp_buf

 

Defined in header <signal.h>
#define SIG_DFL /*implementation defined*/
#define SIG_IGN /*implementation defined*/

The SIG_DFL and SIG_IGN macros expand into integral expressions that are not equal to an address of any function. The macros define signal handling strategies for signal() function.

Constant	Explanation
SIG_DFL	default signal handling
SIF_IGN	signal is ignored

See also

C++ documentation for SIG_DFL, SIG_IGN