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With in these three which one is the default one Call
Reference, Call By Value, Call By Content.-Which one is
default?
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Answer Posted / asmara
Call By Reference is the default one.
1) Call By Reference passes the field to the called program
(sub-program). Any changes to the fields is done in the
calling program.Both will occupy same memory space.
2)Call By Content passes a copy of the fields to the called
program(sub-program). Any changes will not affect the
fields in the calling program(Main Program).
3)Call By Value refers to the address of the value (sent by
the calling program) & any change made here will be
reflected in the calling program. In these Both the Actual
and Dummy Parameters are occupy different memory space.
We will called as Formal Parameters in COBOL and where in
PL/I we called it as Dummy parameters.
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