Function opnd_get_size 

pub unsafe extern "C" fn opnd_get_size(opnd: opnd_t) -> opnd_size_t

Return the data size of \p opnd as a OPSZ_ constant. Returns OPSZ_NA if \p opnd does not have a valid size. \note A register operand may have a size smaller than the full size of its DR_REG_* register specifier.