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#ifndef SEARCH_TYPES__
#define SEARCH_TYPES__
#include <cmath>
namespace search {
typedef float Score;
const Score kScoreInf = INFINITY;
// This could have been an enum but gcc wants 4 bytes.
typedef bool ExtendDirection;
const ExtendDirection kExtendLeft = 0;
const ExtendDirection kExtendRight = 1;
} // namespace search
#endif // SEARCH_TYPES__
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