Where is RAII when you need it?

Newsgroup: comp.lang.c++

Subject: Where is RAII when you need it?

From: ram@...

Date: 17 Nov 2013 19:19:07 GMT



Today, I wanted to show RAII, like this:



#include <iostream>

#include <ostream>

#include <stdexcept>



struct K

{ K (){ ::std::cerr << "K" << ::std::endl; }

~K(){ ::std::cerr << "~K" << ::std::endl; }};



struct R

{ K * k; R() : k{ new K{} }{}

~R() { ::std::cerr << "~R" << ::std::endl; delete k; }};



int main(){ R r{}; throw ::std::runtime_error( "error" ); }



The output was:



K

terminate called after throwing an instance of 'std::runtime_error'

what(): error



This application has requested the Runtime to terminate it in an unusual way.

Please contact the application's support team for more information.



--------------------------------

Process exited with return value 3

Press any key to continue . . .



No ~K nor ~R in sight! Why?

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