Below is a simplest C++ program:
x64test.cpp
int main()
{
char * p = new char[0xffffffffff];
}
My intention is to allocate a big buffer greater than 4G. In a native 64-bit process, it should be OK; but Visual Studio 2011 Beta rejects to compile x64test.cpp and resports: "error C2148: total size of array must not exceed 0x7fffffff bytes".
I have googled and found a useful article at http://blogs.msdn.com/b/windowssdk/archive/2007/09/08/updated-windows-sdk-visual-c-cross-compilers.aspx
According to the article, I should use a native 64-bit compiler to compile x64test.cpp. However, Visual Studio can only be launched as a 32-bit process so that msbuild.exe and cl.exe are always running as 32-bit processes.
I have tried to configure the solution platform to x64, but no effect.
I have used the so-called native 64-bit compiler to successfully compile x64test.cpp by the following steps:
1, start cmd.exe as an administrator;
2, cd C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\amd64;
3, cl x64test.cpp
My question is:
Is there a way to enable the native 64-bit compiler in Visual Studio IDE?
