Defined in header
void (*signal( int sig, void (*handler) (int))) (int);
Sets the error handler for signal
sig. The signal handler can be set so that default handling will occur, signal is ignored, or an user-defined function is called.
When signal handler is set to a function and a signal occurs, it is implementation defined whether signal(sig, SIG_DFL) will be executed immediately before the start of signal handler. Also, the implementation can prevent some implementation-defined set af signals from occurring while the signal handler runs.
- the signal handler calls raise.
- the signal handler refers to an object of static storage duration which is not declared as volatile sig_atomic_t.
- the signal handler calls any function within the standard library, except abort, _Exit, or signal with the first argument not being the number of the signal currently handled.
|sig||-|| the signal to set the signal handler to. It can be an implementation-defined value or one of the following values:
|handler||-|| the signal handler. This must be one of the following:
Previous signal handler on success or SIG_ERR on failure (setting a signal handler can be disabled on some implementations).
|This section is incomplete|
Reason: no example
| runs the signal handler for particular signal |
C++ documentation for signal