Date: 2010apr8
Language: C/C++
Product: MSVC++
Q. How can I avoid MS VC++ warning C4311:
warning C4311: 'type cast' : pointer truncation from '<pointer>' to 'LONG'
A. You can disable the warning temporarily like this:
#pragma warning(push)
#pragma warning(disable: 4311)
LONG my_long = (LONG) my_pointer;
#pragma warning(pop)
Or you can use a builtin inline function to do the conversion (nicer):
LONG my_long = PtrToLong(my_pointer);
More of these here:
http://msdn.microsoft.com/en-us/library/aa384267.aspx
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