Rejected, see remarks in translation and translating example for reference

Not a kata issue, closing

Thank you... i wasnt asking for "xor" actualy... i didnt know the operator "^" :D

Could someone explain that?

C++ Translation.

Why did I not think of this...

There's a general convention to return zero when everything is ok (one way to do it) or when error has occured (many ways, hence many numbers).

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Should be a 6 kyu problem in c

It looks like the unused variable _ only exists to cause it to be initialized with the result of _write_t_buf etc. as a way to execute those functions in the for loop setup. It seems kind of hacky, and I made it be quiet in a similarly hacky way, by turning burying that unneeded return value in the 0 we actually needed earlier:

#define describe(what) for(int _d = 0 * (_write_t_buf(what)); _d < 1; (void)_rewind_t_buf(), ++_d)
#define context(what)  for(int _c = 0 * (_write_t_buf(what)); _c < 1; (void)_rewind_t_buf(), ++_c)
#define it(what)       for(int _i = 0 * (_write_t_buf(what), _print_descr(), _rewind_t_buf()); _i < 1; ++_i)

well, it SeemsToWork™

can I strike my answer from ever having existed? is what I thought when I saw this