checku8            70 lib_string.c       if (!checku8(k))
checku8          2149 lj_asm_x86.h   	    ((irt_isu8(irl->t) && checku8(imm)) ||
checku8          1674 lj_parse.c           if (checku8(k)) {
checku8          1682 lj_parse.c         if (checku8(k) && n == (lua_Number)k) {