[CMake] Question about running C code from within cmake

[Michael Ellery]

have a look at https://cmake.org/cmake/help/latest/module/ProcessorCount.html

If you still think you really need to compile/run code for this, have a look at https://cmake.org/cmake/help/latest/command/try_run.html#command:try_run, but that is harder to get working and maintain.

> On Jun 2, 2019, at 5:16 AM, Steven Truppe <workbench at gmx.at> wrote:
> 
> Hi everyone,
> 
> 
> 
> i'm trying to search for a way for win32 to get the cpu core count. i found the c code:
> 
> SYSTEM_INFO sysinfo;
> GetSystemInfo(&sysinfo);
> int numCPU = sysinfo.dwNumberOfProcessors
> ;
> 
> Is there a way i can get the return value numCPU and create a variable out of it ? for apple and linux i allready have a
> solution only win32 is left.
> 
> best regards!
> 
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