How to hide the "<>" token when the template class already has adefault "typename".

[Ed]

Hi, guys,
Here is a simple template class definition:

template <typename T = int>
class Point {
public:
T X;
T Y;
T Z;
};

int main()
{
Point<point1;
Point<doublepoint2;
}
There is already a default type "int" for class Point. But I still
need to type "<>" when creating a object.
I don't want to put "<>" in the code, because I think it's useless.
Point<point1;
How can I write the code like this
Point point1;

I tried "typedef", but it doesn't work.
typedef Point<Point;

Thanks,
Ed.

[Salt_Peter]

On Aug 5, 5:22 am, Ed <[e-mail]:

Hi, guys,
Here is a simple template class definition:

template <typename T = int>
class Point {
public:
T X;
T Y;
T Z;

};

int main()
{
Point<point1;
Point<doublepoint2;

}

There is already a default type "int" for class Point. But I still
need to type "<>" when creating a object.
I don't want to put "<>" in the code, because I think it's useless.
Point<point1;
How can I write the code like this
Point point1;

I tried "typedef", but it doesn't work.
typedef Point<Point;

try

int main()
{
typedef Point<NPoint;
NPoint point_n;
}

[Pete Becker]

On 2008-08-05 05:22:07 -0400, Ed <se*****@gmail.comsaid:

>
I tried "typedef", but it doesn't work.
typedef Point<Point;

Use a different name. You can't use the same name for a template and a class.

--
Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of "The
Standard C++ Library Extensions: a Tutorial and Reference
(www.petebecker.com/tr1book)

[Ed]

On Aug 5, 6:43 pm, Pete Becker <[e-mail]:

On 2008-08-05 05:22:07 -0400, Ed <[e-mail]:

I tried "typedef", but it doesn't work.
typedef Point<Point;

Use a different name. You can't use the same name for a template and a class.

--
Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of "The
Standard C++ Library Extensions: a Tutorial and Reference
(www.petebecker.com/tr1book)

But "<>" seems unnecessary.

[Bo Persson]

Ed wrote:

On Aug 5, 6:43 pm, Pete Becker <[e-mail]:

>On 2008-08-05 05:22:07 -0400, Ed <[e-mail]:

>>I tried "typedef", but it doesn't work.
typedef Point<Point;

Use a different name. You can't use the same name for a template
and a class.

--
Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of
"The Standard C++ Library Extensions: a Tutorial and Reference
(www.petebecker.com/tr1book)

But "<>" seems unnecessary.

It is just as necessary as the "()" in a function call:

p = f;
i = f();

have totally different meanings.

That's the way the language is designed.
Bo Persson