cx-chlcd/headers/cx/chlcd/__helper.h

#ifndef CX_CHLCD___HELPER_H_INCLUDED
#define CX_CHLCD___HELPER_H_INCLUDED

#define __R(X) do { \
    if ((X) != CHLCD_SUCCESS) { \
        return CHLCD_BAD_ARGUMENT; \
    } \
} while (0)

#endif