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Computing (FOLDOC) dictionary (also found in English - Vietnamese, English - English (Wordnet), French - Vietnamese)
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programming (Or "arg") A value or reference passed to a
function, procedure, subroutine, command or program, by
the caller. For example, in the function
square(x) = x * x
x is the formal argument or "parameter" and in the call
y = square(3+3)
3+3 is the actual argument. This will, in most cases,
execute the function square with x having the value 6.
There are many different conventions for passing arguments to
functions and procedures including call-by-value,
call-by-name, call-by-need. These affect whether the
value of the argument is computed by the caller or the callee
(the function) and whether the callee can modify the value of
the argument as seen by the caller (if it is a variable).