fix `nodiscard` warning

ComputationalRadiationPhysics / cuda_memtest

Fork of CUDA GPU memtest :eyeglasses:

http://sourceforge.net/projects/cudagpumemtest

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Closed psychocoderHPC closed 2 years ago

psychocoderHPC commented 2 years ago

Fix warning seen with hipcc together with PIConGPU. Refactor the usage of the error checking macros.