Nicer signing for clang.

libethential/FixedHash.h

@@ -85,13 +85,13 @@ public:
 	bool operator<(FixedHash const& _c) const { return m_data < _c.m_data; }
 
 	// The obvious binary operators.
-	FixedHash& operator^=(FixedHash const& _c) { for (auto i = 0; i < N; ++i) m_data[i] ^= _c.m_data[i]; return *this; }
+	FixedHash& operator^=(FixedHash const& _c) { for (unsigned i = 0; i < N; ++i) m_data[i] ^= _c.m_data[i]; return *this; }
 	FixedHash operator^(FixedHash const& _c) const { return FixedHash(*this) ^= _c; }
-	FixedHash& operator|=(FixedHash const& _c) { for (auto i = 0; i < N; ++i) m_data[i] |= _c.m_data[i]; return *this; }
+	FixedHash& operator|=(FixedHash const& _c) { for (unsigned i = 0; i < N; ++i) m_data[i] |= _c.m_data[i]; return *this; }
 	FixedHash operator|(FixedHash const& _c) const { return FixedHash(*this) |= _c; }
-	FixedHash& operator&=(FixedHash const& _c) { for (auto i = 0; i < N; ++i) m_data[i] &= _c.m_data[i]; return *this; }
+	FixedHash& operator&=(FixedHash const& _c) { for (unsigned i = 0; i < N; ++i) m_data[i] &= _c.m_data[i]; return *this; }
 	FixedHash operator&(FixedHash const& _c) const { return FixedHash(*this) &= _c; }
-	FixedHash& operator~() { for (auto i = 0; i < N; ++i) m_data[i] = ~m_data[i]; return *this; }
+	FixedHash& operator~() { for (unsigned i = 0; i < N; ++i) m_data[i] = ~m_data[i]; return *this; }
 
 	/// @returns true if all bytes in @a _c are set in this object.
 	bool contains(FixedHash const& _c) const { return (*this & _c) == _c; }