Clear C++20 enum-enum conversion warnings (GH #1016)

1 files changed, 1 insertions, 1 deletions

diff --git a/hc128.cpp b/hc128.cpp
index b734d6e5..8590b866 100644
--- a/hc128.cpp
+++ b/hc128.cpp
@@ -229,7 +229,7 @@ void HC128Policy::OperateKeystream(KeystreamOperation operation, byte *output, c
 		//  writing the result to the output buffer. In all cases the

 		//  keystream is written to the output buffer. The optional part is

 		//  adding the input buffer and keystream.

-		if ((operation & INPUT_NULL) != INPUT_NULL)

+		if ((operation & static_cast<int>(INPUT_NULL)) != static_cast<int>(INPUT_NULL))

 		{

 			xorbuf(output, input, BYTES_PER_ITERATION);

 			input += BYTES_PER_ITERATION;