SIG_DFL, SIG_IGN

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Utilities library
General utilities
Relational operators (deprecated in C++20)
Defined in header <csignal>
#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 std:: signal ( ) function.

Constant Explanation
SIG_DFL default signal handling
SIG_IGN signal is ignored

See also

C documentation for SIG_DFL , SIG_IGN