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static int page_and_bit_calculator(struct ast_extended_codec in, int *page, int *bits){    union {        struct ast_extended_codec codec;        unsigned int bits[sizeof(struct ast_extended_codec) / sizeof(int)];    } _in = { in };    for (*page = 0; *page < sizeof(struct ast_extended_codec) / sizeof(int); *page++) {        for (*bits = 0; *bits < sizeof(int) * 8; *bits++) {            if (_in.bits[*page] & (1 << (*bits))) {                return 0;            }        }    }    return -1;}