:sig
String signal_name(int sig)

:params
sig : POSIX signal number
return value : signal name such as `SIGSEGV`, or an empty string when unknown

:see
>runtime
backtrace_capture
backtrace_get_frames

:content
Returns a readable name for a POSIX signal number.

Example:


This is mostly useful in diagnostics and error reporting code.

:example
print("signal_name example\n");
