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Fix ambiguity between clamp implementations

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There is an ambiguity between global and std clamp implementations when compiling in c++17,
and on certain toolchains that are not strictly conforming to c++11.
This is solved by putting our clamp implementation in a namespace.

closes https://github.com/official-stockfish/Stockfish/pull/2572

No functional change.
This commit is contained in:
Gary Heckman
2020-03-05 12:37:08 -05:00
committed by Joost VandeVondele
parent 9690cd6295
commit 37e3863927
7 changed files with 16 additions and 10 deletions
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3
src/bitboard.h
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@@ -255,9 +255,6 @@ template<> inline int distance<File>(Square x, Square y) { return std::abs(file_
template<> inline int distance<Rank>(Square x, Square y) { return std::abs(rank_of(x) - rank_of(y)); }
template<> inline int distance<Square>(Square x, Square y) { return SquareDistance[x][y]; }
template<class T> constexpr const T& clamp(const T& v, const T& lo, const T& hi) {
return v < lo ? lo : v > hi ? hi : v;
}
/// attacks_bb() returns a bitboard representing all the squares attacked by a
/// piece of type Pt (bishop or rook) placed on 's'.