Originally posted by: HKUcivil

Hi,

I use Vs2015 + Cplex 12.7.

I receive a lot of warning C4334:

C:\Program Files\IBM\ILOG\CPLEX_Studio127\concert\include\ilconcert/ilsched/ilosbasic.h(34): warning C4334: '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)

How to solve this?

Are you calling any of the IloBitSet() functions? Could you provide a full stack-trace for one of these warnings?

Originally posted by: Philippe_Refalo

This is a warning that you get when compiling with CP Optimizer on Windows 64 bits platforms. The conversion does not create any problem in practice. However, we have fixed it in the next release. 

Philippe