ss << square_to_string(pop_lsb(&b)) << " ";
ss << "\nLegal moves: ";
- for (MoveList<LEGAL> ml(*this); !ml.end(); ++ml)
- ss << move_to_san(*const_cast<Position*>(this), ml.move()) << " ";
+ for (MoveList<LEGAL> it(*this); *it; ++it)
+ ss << move_to_san(*const_cast<Position*>(this), *it) << " ";
return ss.str();
}
/// Position::is_draw() tests whether the position is drawn by material,
/// repetition, or the 50 moves rule. It does not detect stalemates, this
/// must be done by the search.
-template<bool SkipRepetition>
bool Position::is_draw() const {
// Draw by material?
return true;
// Draw by repetition?
- if (!SkipRepetition)
- {
- int i = 4, e = std::min(st->rule50, st->pliesFromNull);
+ int i = 4, e = std::min(st->rule50, st->pliesFromNull);
- if (i <= e)
- {
- StateInfo* stp = st->previous->previous;
+ if (i <= e)
+ {
+ StateInfo* stp = st->previous->previous;
- do {
- stp = stp->previous->previous;
+ do {
+ stp = stp->previous->previous;
- if (stp->key == st->key)
- return true;
+ if (stp->key == st->key)
+ return true;
- i += 2;
+ i += 2;
- } while (i <= e);
- }
+ } while (i <= e);
}
return false;
}
-// Explicit template instantiations
-template bool Position::is_draw<false>() const;
-template bool Position::is_draw<true>() const;
-
/// Position::flip() flips position with the white and black sides reversed. This
/// is only useful for debugging especially for finding evaluation symmetry bugs.