Fix bit stream.

src/nykk/CircularBitStream.hpp

@@ -65,7 +65,7 @@ namespace nykk
 
 			for (std::size_t i = 0; i < size_bits; i++)
 			{
-				data |= read_bit() ? 1 << i : 0;
+				data |= read_bit() ? std::uint64_t {1} << i : 0;
 			}
 
 			return data;

test/TestCircularBitStream.hpp

@@ -22,6 +22,9 @@ inline void run_test_circular_bit_stream()
 
 	assert(s.read(16) == 0xb98e);
 	assert(s.pos_bit() == 4);
+
+	assert(s.read(64) == 0xb98efcdab98efcda);
+	assert(s.pos_bit() == 4);
 }
 
 #endif