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Hi,
I am using Visual C++ to write an app. One problem is that the application will allocate a lot of object instances of a specific class CMyObject, maybe 400, 000. This will cause “Out of memory” error when total allocated CMyObject reaches 400,000.
To solve this problem, I just wonder when a new CMyObject instance is created, is it possible to specify so that the instance will allocate on a disk cache, or file mapping instead of the memory space?
Thanks
Alan
Most probably the need in allocating a half million objects indicates bad design issue.
What igor said.
Regardless of bad design issues
If you are exhausting the address space of your application (for a Win32 app this is 2Gb, possibly 3gb with a switch in the build settings and depending on which version of windows) then you will need to do any disk based management yourself.
Compiling as a Win64 app might work, though it's still probably bad design to have that many objects.
Hard to say without knowing what you're doing, but perhaps you need a database.