Templates

[BCS]

Lorenzo Villani wrote:
> Hi, i have a little problem with a simple class (please note that I'm a D newbie)
> 
> The folllowing is an initial implementation of a Vector class using templates, modeled after Qt's QVector. As you might notice this is a class wrapper around dynamic sized arrays.
> 
> (there's only a little part of the code implemented)
> 
> module std.Vector;
> 
> class Vector(T) {
[...]
> }
> 
> Now, if I build a very simple test program such as
> 
> import std.stdio;
> import std.Vector;
> 
> int main() {
>        Vector!(Object) myVec;
>        myvec.size();
>        return 0;
> }
> 

classic D error, try this:

Vector!(Object) myVec = new Vector!(Object)();

All objects are by reference and are, by default set to null, NOT newed. 
If you want a stack allocated type use structs.


> 
> The application would compile fine but give a segfault when running. I'm running Linux with Digital Mars D Compiler v1.015 on a Fedora 8 box.
> 
> PS: Can you tell me why the compiler doesn't let me use consts in functions declarations?

const in 1.x is true const, compile time known values like #define does 
in C.