[boost] [static] A useful static variable generator.

Subject: [boost] [static] A useful static variable generator.
From: Dongfei Yin (yin.dongfei_at_[hidden])
Date: 2009-03-20 01:53:27

Hi,
    Some time, the sequence of static variable initialization always 
make something bad.
the piece of code below will useful about this problem.

class static_
{
public:
    template <int N, class T>
    static T& var()
    {
        static T instance;
        return instance;
    }

private:
    ~static_() {}
};

so, if a static variable of std::string is wanted, I will use:

static_::var<0, std::string>() = ":)";

the first template parameter is used for when many static variable of 
same type is needed.
most important thing is all the variable will be initialized before use.

Just for fun.

Dongfei.