Failed to allocate 1.5 GB of memory in vC ++ mfc application

Question

I have an MFC vC ++ application written in VS2010. When I try to allocate a double array of size 185000000 using

• malloc: it returns NULL
• new statement: it throws a CMemoryException

But when I write a standalone win32 console application in C ++, for example:

double *ptr = NULL;
ptr = new double[185000000];

It works great, and the ProcessExplorer application shows ~ 1411 MB of memory.

My MFC application has a graphical interface and a large number of libraries added to work with the Agilent meter and voltage measurement of the NI-6255 meter.

Answer 1

: https://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx

x64- 32- 2 . , DLL, , . , 1,5 .

, 4 .

, 64 .