Test notification

Overview
This test_notification(n) function will test for a notification from process n, if such a notification is available then this is received (i.e. one need not then call wait or waitany.)


 * Pass: an Int representing the process ID to test for a notification from
 * Returns: a Bool representing whether a notification was received or not

Example
function void main { proc 1 { notify(0); };  proc 0 { while (!test_notification(1)) { }; }; };
 * 1) include

Since: Version 1.00