Monday, December 23, 2013

prevent heap instantiation of my class (barcap

I might have blogged about this.... [[more effC++]] by Scott Meyers has a chapter on this. The basic ideas, expressed in my own langauge for maximum absorption --

case 1) it's relatively easy to prevent qq( new MyClass )

case 2) MyClass could be subclassed to Der. If Der is beyond my control, then MyClass could (against my will) be instantiated on heap as a subobject

case 3) MyClass could be a field in class Umbrella. If Umbrella is beyond my control, then MyClass could (against my will) be instantiated on heap as a subobject

I feel in many enterprise app teams, Cases 2/3 are rare and impractical, because Der and Umbrella would be owned by myself or my own team.

Therefore, in many real world contexts it is feasible to prevent heap instantiation of my class, and reduces memory leak.

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New York (Time Square), NY, United States
http://www.linkedin.com/in/tanbin