323     lua_Number nb = nvalue(b), nc = nvalue(c);  in Arith()  local
325       case TM_ADD: setnvalue(ra, luai_numadd(nb, nc)); break;  in Arith()
326       case TM_SUB: setnvalue(ra, luai_numsub(nb, nc)); break;  in Arith()
327       case TM_MUL: setnvalue(ra, luai_nummul(nb, nc)); break;  in Arith()
328       case TM_DIV: setnvalue(ra, luai_numdiv(nb, nc)); break;  in Arith()
329       case TM_MOD: setnvalue(ra, luai_nummod(nb, nc)); break;  in Arith()
330       case TM_POW: setnvalue(ra, luai_numpow(nb, nc)); break;  in Arith()
331       case TM_UNM: setnvalue(ra, luai_numunm(nb)); break;  in Arith()
368           lua_Number nb = nvalue(rb), nc = nvalue(rc); \
369           setnvalue(ra, op(nb, nc)); \
501           lua_Number nb = nvalue(rb);  in luaV_execute()  local
502           setnvalue(ra, luai_numunm(nb));  in luaV_execute()