Function arrayindex

src/Chain/libraries/glua/ltable.cpp:152–159

** returns the index for 'key' if 'key' is an appropriate key to live in ** the array part of the table, 0 otherwise. */

** the array part of the table, 0 otherwise.
*/
static unsigned int arrayindex(const TValue *key) {
    if (ttisinteger(key)) {
        lua_Integer k = ivalue(key);
        if (0 < k && (lua_Unsigned)k <= MAXASIZE)
            return lua_cast(unsigned int, k);  /* 'key' is an appropriate array index */
    }
    return 0;  /* 'key' did not match some condition */
}


/*