ReserveBottomMemory

Reserve all of the bottom memory to force allocations to start above the 4GB line.

This can easily expose compatibility issues when porting 32-bit code to 64 bit.

The original code was taken from: https://randomascii.wordpress.com/2012/02/14/64-bit-made-easy/

How to use

Call ReserveBottomMemory() as early as possible in your process and FreeBottomMemory() at the end.

How to build

Running cmake will create a VisualStudio solution with a shared library called ReserveBottomMemory and its tests.
You can build them and run the tests as usual with cmake solutions.

Integration into your project

You can either:

• Build the shared library with cmake as described above and link to it in your project.
• Include the source file directly in your project.
• If you want to use some other build system just create a shared library with the source and header file and define RESERVEBOTTOMMEMORY_SOURCE to export the symbols.

Tests

Tests have been added to check that after calling ReserveBottomMemory() allocations return high memory addresses.
See the tests folder.

Platforms supported

Currently only 64-bit Windows is supported.

License

Apache License 2.0
http://www.apache.org/licenses/LICENSE-2.0