Parameter Passing
Arguments to routines are always passed by value; there is no pass-by-reference facility. However, parameters are allowed to be modified locally (i.e. within the callee) which is implemented very efficiently as sequences have automatic copy-on-write semantics. In other words, when you pass a sequence to a routine, initially only a reference to it is passed, but at the point the routine modifies this sequence parameter the sequence is copied and the routine updates only a copy of the original.
Read more about this topic: Euphoria (programming Language)
Famous quotes containing the word passing:
“The statue is then beautiful when it begins to be incomprehensible, when it is passing out of criticism, and can no longer be defined by compass and measuring-wand, but demands an active imagination to go with it, and to say what it is in the act of doing.”
—Ralph Waldo Emerson (1803–1882)