Hamilton Richards <[EMAIL PROTECTED]> writes:
> That's not the case in C, C++, Java, or Ada. In C and C++, for
> example, given two arrays
>
> int X[50];
> int Y[100];
>
> and a function declared as
>
> void P( int a[] )
>
> then these calls
>
> P( X )
> P( Y )
>
> are both valid, because the sizes of X and Y are not part of their type.
But here you don't pass the array but a pointer to its first element.
You can even call P(&x) where x is an int, not an array at all.
Consider this:
int X[50];
int Y[100];
void P(int (&a)[50]) {}
int main() {
P(X); // valid
P(Y); // invalid
}
> In C and C++, there's not even any way for a function to discover
> the size of an array argument.
template<int N>
int size(int (&a)[N]) {
return N;
}
--
__("< Marcin Kowalczyk
\__/ [EMAIL PROTECTED]
^^ http://qrnik.knm.org.pl/~qrczak/
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