Re: Windows array allocation problem

Walter Spector wrote:
Roy Lewallen wrote:
If that's true, then it's the answer to my question and the solution to my problem. If I know for sure how much will be unavailable, I can set the maximum allocation accordingly.

Note that the address space of a process can be further fragmented by
DSOs/DLLs - which can be dynamically loaded at various addresses at
run-time. Thus 'available memory' and 'available CONTIGUOUS memory'
can be two very different things...

Bottom line is that once your problem sizes start approaching 2 gbytes,
you need to start considering a change to a system supporting a 64-bit
memory model.

Unfortunately, I don't have the option of changing the systems of all the customers using this program.

All I need to know is how large an array I can reliably allocate. Surely there's some way to get this information in a 32 bit system.

From the responses I've gotten, it seems that allocating any array to any size is a risky business that might suddenly fail for lack of adequate contiguous memory.

Roy Lewallen
.

Relevant Pages

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