Question about Loki::Singleton

[Krivenok Dmitry]

Hello All!

This is example of code:
//////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef A_H_
#define A_H_

#include <Loki/Singleton.h>
#include <Loki/SmartPtr.h>
#include <iostream>

class A
{
public:
A() { std::cout << "A constructor" << std::endl;}
~A() { std::cout << "A destructor" << std::endl;}
};

typedef Loki::Singleton Holder<
Loki::SmartPtr< A>,
Loki::CreateUsi ngNew,
Loki::NoDestroy ,
Loki::SingleThr eaded[color=blue]
> APtrSingleton_t ;[/color]
#endif
//////////////////////////////////////////////////////////////////////////////////////////////////

I can use APtrSingleton_t ::Instance() in my program, but it's very
uneasily.
How to define (short) alternative name of APtrSingleton_t ::Instance()?

Thanks!

[Ben Pope]

Re: Question about Loki::Singleton

Krivenok Dmitry wrote:[color=blue]
> Hello All!
>
> This is example of code:
> //////////////////////////////////////////////////////////////////////////////////////////////////
> #ifndef A_H_
> #define A_H_
>
> #include <Loki/Singleton.h>
> #include <Loki/SmartPtr.h>
> #include <iostream>
>
> class A
> {
> public:
> A() { std::cout << "A constructor" << std::endl;}
> ~A() { std::cout << "A destructor" << std::endl;}
> };
>
> typedef Loki::Singleton Holder<
> Loki::SmartPtr< A>,
> Loki::CreateUsi ngNew,
> Loki::NoDestroy ,
> Loki::SingleThr eaded[color=green]
> > APtrSingleton_t ;[/color]
> #endif
> //////////////////////////////////////////////////////////////////////////////////////////////////
>
> I can use APtrSingleton_t ::Instance() in my program, but it's very
> uneasily.
> How to define (short) alternative name of APtrSingleton_t ::Instance()?
>
> Thanks![/color]

A* x() {
return APtrSingleton_t ::Instance();
}

Then whenever you want the instance, just do:
A* a = x();

Not very useful if you ask me, though.

Ben Pope
--
I'm not just a number. To many, I'm known as a string...

[mlimber]

Re: Question about Loki::Singleton

Krivenok Dmitry wrote:[color=blue]
> Hello All!
>
> This is example of code:
> //////////////////////////////////////////////////////////////////////////////////////////////////
> #ifndef A_H_
> #define A_H_
>
> #include <Loki/Singleton.h>
> #include <Loki/SmartPtr.h>
> #include <iostream>
>
> class A
> {
> public:
> A() { std::cout << "A constructor" << std::endl;}
> ~A() { std::cout << "A destructor" << std::endl;}
> };
>
> typedef Loki::Singleton Holder<
> Loki::SmartPtr< A>,
> Loki::CreateUsi ngNew,
> Loki::NoDestroy ,
> Loki::SingleThr eaded[color=green]
> > APtrSingleton_t ;[/color]
> #endif
> //////////////////////////////////////////////////////////////////////////////////////////////////
>
> I can use APtrSingleton_t ::Instance() in my program, but it's very
> uneasily.
> How to define (short) alternative name of APtrSingleton_t ::Instance()?
>
> Thanks![/color]

You could create a macro (yuck!), an inline function, or a local
reference (my preference):

Loki::SmartPtr< A>& ptr = APtrSingleton_t ::Instance();

Cheers! --M

[Krivenok Dmitry]

Re: Question about Loki::Singleton

Of course s/Loki::SmartPtr< A>/A*/g :))