Re: Non-static singleton setup to control life time
On Dec 14, 11:46 pm, Kris Prad <krisp...@yahoo.co.uk> wrote:
I want to setup a singleton, without 'static' initialization. My
motive is to control the life time of the Singleton, bounded by its
scope, something I cannot do with the statics.
Not this way. This uses static:
Static Single s; // do not want static
Instead, I am doing this (please ignore thread safety issues)
Single* g_Single = NULL; // global singleton ptr
g_Single = this;
throw string("Single is a singleton");
g_Single = NULL;
Is this ugly or acceptable?
Well, you should understand the difference between Singleton patterns
and global variable. What you have described is not a singleton.
if you want to control lifetime of you variable you may use Meyers
singleton. Nevertheless, I recommend you to avoid using both
singletons and global variables, for additional details read
"Refactoring to Patterns" by Joshua Kerievsky, chapter 6. Inline
[ See http://www.gotw.ca/resources/clcm.htm for info about ]
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