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The sig_atomic_t type is of type
int and is used as a variable in a signal
handler. The SIG_ macros are used with the
signal function to define signal functions.
SIG_DFL |
Default handler. |
SIG_ERR |
Represents a signal error. |
SIG_IGN |
Signal ignore. |
The SIG macros are used to represent a
signal number in the following conditions:
SIGABRT |
Abnormal termination (generated by the abort
function). |
SIGFPE |
Floating-point error (error caused by division by
zero, invalid operation, etc.). |
SIGILL |
Illegal operation (instruction). |
SIGINT |
Interactive attention signal (such as ctrl-C). |
SIGSEGV |
Invalid access to storage (segment violation, memory
violation). |
SIGTERM |
Termination request. |
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