Yankes

This line: https://github.com/jbeder/yaml-cpp/blob/6308112e54fe41a3bc1ceeb2b807f0d09f15a1e9/include/yaml-cpp/node/convert.h#L123 load `unsigned char` as `int` But when you save you get: https://github.com/jbeder/yaml-cpp/blob/6308112e54fe41a3bc1ceeb2b807f0d09f15a1e9/include/yaml-cpp/node/convert.h#L118 Its is saved as effective `char`. Or in emitter: https://github.com/jbeder/yaml-cpp/blob/master/include/yaml-cpp/emitter.h#L211

C# like handling of `null` in comparation operators

3

In C# when you write code alike `(int?)0 == null` result is `false` but in NCalc2 because of `LambdaExpressionVistor.UnwrapNullable` all `null` are coveted to `0`. This in effect cause `NullInt()...

Fix in visibility when earth shade is close to shade value of radar circle.

When compiling with SDL1 I get error here: ```cpp #elif defined(FASTFLOAT_32BIT) || (defined(_WIN64) && !defined(__clang__)) answer.low = _umul128(a, b, &answer.high); // _umul128 not available on ARM64 #elif defined(FASTFLOAT_64BIT) && defined(__SIZEOF_INT128__)...