Merge pull request #2772 from ethereum/cppcheck

Improvements found by Cppcheck (const/static functions and explicit constructors)

1 files changed, 1 insertions, 1 deletions

diff --git a/libdevcore/FixedHash.h b/libdevcore/FixedHash.h
index 5b1c7acf..1c37b675 100644
--- a/libdevcore/FixedHash.h
+++ b/libdevcore/FixedHash.h
@@ -59,7 +59,7 @@ public:
 	enum ConstructFromHashType { AlignLeft, AlignRight, FailIfDifferent };
 
 	/// Construct an empty hash.
-	FixedHash() { m_data.fill(0); }
+	explicit FixedHash() { m_data.fill(0); }
 
 	/// Construct from another hash, filling with zeroes or cropping as necessary.
 	template <unsigned M> explicit FixedHash(FixedHash<M> const& _h, ConstructFromHashType _t = AlignLeft) { m_data.fill(0); unsigned c = std::min(M, N); for (unsigned i = 0; i < c; ++i) m_data[_t == AlignRight ? N - 1 - i : i] = _h[_t == AlignRight ? M - 1 - i : i]; }