Standard C++ Library Reference ISO/IEC (VERSION3)

SIG_DFL

#define SIG_DFL <address constant expression>

The macro yields the func argument value to signal to specify default signal handling.

SIG_ERR

#define SIG_ERR <address constant expression>

The macro yields the signal return value to specify an erroneous call.

SIG_IGN

#define SIG_IGN <address constant expression>

The macro yields the func argument value to signal to specify that the target environment is

to henceforth ignore the signal.

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