setting default value for a parameter of a class member function

[bluekite2000]

I have
class Foo
{
....
....
//copy constructor
Foo(const Foo<T>& F, int size=F.size())
{
...
...
}

and get this error
error: `F' was not declared in this scope

Any solution to this?

[Dan Cernat]

bl**********@gmail.com wrote:

I have
class Foo
{
...
...
//copy constructor
Foo(const Foo<T>& F, int size=F.size())
{
..
..
}

and get this error
error: `F' was not declared in this scope

Any solution to this?

Foo(const Foo<T>& F)
{
int size = F.size();
.....
}

or, if you really need two arguments:
Foo(const Foo<T>& F, int size=-1)
{
if (size < 0)
size = F.size();
....
}

Dan

[Howard]

<bl**********@gmail.com> wrote in message
news:11*********************@z14g2000cwz.googlegro ups.com...

I have
class Foo
{
...
...
//copy constructor
Foo(const Foo<T>& F, int size=F.size())
{
..
..
}

and get this error
error: `F' was not declared in this scope

Any solution to this?

I'm not sure if there's a *neat* solution to that, but I've got *a*
solution...

I'd guess that size can't be negative, right? How about:

Foo( const Foo<T>& F, int size = -1)
{
if (size < 0)
size = F.size();
...
}

Would that work for you?

-Howard

[Pete Becker]

bl**********@gmail.com wrote:

I have
class Foo
{
...
...
//copy constructor
Foo(const Foo<T>& F, int size=F.size())
{
..
..
}

and get this error
error: `F' was not declared in this scope

Any solution to this?

Write two constructors.

--

Pete Becker
Dinkumware, Ltd. (http://www.dinkumware.com)

[bluekite2000]

I actually rather throw exception in case user enters size<0.