We use blake2b in our project and found it beneficial to enable implicit conversion warnings, which required fixing any implicit conversions in blake2b. I extended this fix to all of libb2 in case there was any interest in up-streaming this change. It might not be desirable to actually enable said warning in the project unless you have a way to test compilation in all supported environments, but the fixes could still be nice.
We use blake2b in our project and found it beneficial to enable implicit conversion warnings, which required fixing any implicit conversions in blake2b. I extended this fix to all of libb2 in case there was any interest in up-streaming this change. It might not be desirable to actually enable said warning in the project unless you have a way to test compilation in all supported environments, but the fixes could still be nice.