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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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2
src/material.cpp
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@@ -129,7 +129,7 @@ Entry* probe(const Position& pos) {
Value npm_w = pos.non_pawn_material(WHITE);
Value npm_b = pos.non_pawn_material(BLACK);
Value npm = clamp(npm_w + npm_b, EndgameLimit, MidgameLimit);
Value npm = Utility::clamp(npm_w + npm_b, EndgameLimit, MidgameLimit);
// Map total non-pawn material into [PHASE_ENDGAME, PHASE_MIDGAME]
e->gamePhase = Phase(((npm - EndgameLimit) * PHASE_MIDGAME) / (MidgameLimit - EndgameLimit));