If i wish a local to "die" before the close} of the scope, C/C++ Programming

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What if I wish a local to "die" before the close} of the scope wherein it was created? Can I call a destructor on a local if I want to?

 


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3/15/2013 5:25:26 AM

What if I wish a local to "die" before the close} of the scope wherein it was created? Can I call a destructor on a local if I want to?

A: No

Imagine the (desirable) side effect of destructing a local File object is to close the File. Suppose now you have an object f of a class File and you wish File f to be closed before the end of the scope (that means }) of the scope of object f:

void someCode()

{

File f;

...insert code that must execute while f is still open... We wish the side-effect of f''s destructor here!

...insert code which should execute after f is closed...

}

There is a simple solution to this dilemma. However in the mean time, remember: Do not call the destructor explicitly!

 

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