From: Shyan Lam [mailto:[EMAIL PROTECTED]
> From: Michael White [mailto:[EMAIL PROTECTED]
>> Is someone looking to increase the speed of a program, or
>are they trying
>> to save memory?
>> Forgive me if my observation is incorrect, as I am a new programmer
>myself.
>>
>> As I think of it, when you pass a variable by value to a
>function, you are
>> having to make another copy of the value thus taking up more space in
>> memory for the duration of the function.
>
>Same as pointer, A copy of the address is passed.
>
>Consider the following two variations:
> 1. int foo(const int i) { return i * i; }
> 2. int foo(const int * const pi) { return *pi * *pi; }
>
>What gain do you have by passing address instead of a copy?
The ability to modify the passed in data.
[snip]
--
PJH
bug, n: An elusive creature living in a program that makes it incorrect.
The activity of "debugging", or removing bugs from a program, ends when
people get tired of doing it, not when the bugs are removed. -
"Datamation", January 15, 1984
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