What is the difference function call by value & function
call by reference?
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Answer Posted / rahul
In call by value function, the value of the actual
parameters or arguments from calling function is passed on
to the called functions i.e. actual value is copied into the
formal parameters of called function. The arguments passed
may be variables of any data type or constants also.
In call by reference, the address of actual parameters are
passed on to the called functions from calling functions.
So, the values stored in these memory locations can be
altered, which is reflected in calling functions also.
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