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    <p><em>"I cannot for the life of me figure out what is wrong."</em></p> <p>Probably nothing.</p> <p><em>"[Program] still uses more memory at program end after destroying all objects."</em></p> <p>You should not really care about memory usage at program end. Any modern operating system cares about "freeing" all memory associated with a process, when the process ends. (Technically speaking, the address space of the process is simply released.)</p> <p>Freeing memory at program end can actually slow down the termination of your program, since it unnecessarily needs to access memory pages which may even lie on swap space.</p> <p>That additional 0.5MB probably remains at your allocator (malloc/free, new/delete, std::allocator). These allocators usually work in a way that they request memory from the operating system when necessary, and give memory back the OS when convenient. Fragmentation could be one of the reasons why the allocator has to hold more memory than strictly required at a moment in time. It is also usually faster to keep some memory in reserve, since requesting memory from the operating system is slow.</p> <p><em>"I am using the task manager to monitor memory usage."</em></p> <p>Measuring memory usage is in fact more sophisticated than observing a single number, and it requires good understanding of virtual memory and the memory management between a process and the operating system. Unfortunately I cannot recommend any good tools for Windows.</p> <p>Overall, I think there is no issue with your simple program.</p>
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    1. POVery simple program passes VS2010 c++ memory leak checker, but still uses more memory at program end after destroying all objects?
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    1. USMiklós Homolya
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