request bulk ignored type casting for compute result to small types(byte,sbyte,short,ushort)

[sgf]

here is some examples.
before

       sbyte b1 = 200;
       byte b2 = (byte)(b1 + 60);
       short s3 = (short)(b1 - 60);
       ushort i3 = (ushort)(b1 * 60);
       sbyte l5 = (sbyte)(b1 / 60); 
       int intRlt=(int)(99999L+9999L); 

developers know what they're doing.The unchecked{} is not work.
Suggestion: let unchecked work for this (follow code)?

unchecked
{
       sbyte b1 = 200;
       byte b2 = b1 + 60;
       short s3 = b1 - 60;
       ushort i3 = b1 * 60;
       byte l5 = b1 / 60; 
       int intRlt=99999L+9999L; 
}

Need a way to Bulk ignored type casting. to avoid write the follow code every where.

smallNum= (smallNum)(smallNum +-*/ smallNum)
 //or (smallNum +-*/ smallNum)  or (smallNum +-*/  LargeNum)

[canton7]

developers know what they're doing.

I'd argue that if a developer writes sbyte b1 = 200;, it's probably a mistake. In this case, at least, I think the explicit unchecked cast should always be necessary.

For the others, the problem is not with checked/unchecked, but the fact that short + short = int, and there's no implicit conversion from int to short. While I can sympathise with the issue here, I don't think that unchecked is the right syntax to try and use.

[sgf]

developers know what they're doing.

I'd argue that if a developer writes sbyte b1 = 200;, it's probably a mistake. In this case, at least, I think the explicit unchecked cast should always be necessary.

For the others, the problem is not with checked/unchecked, but the fact that short + short = int, and there's no implicit conversion from int to short. While I can sympathise with the issue here, I don't think that unchecked is the right syntax to try and use.

😂 I'm sorry, this example sbyte b1 = 200; is not very rigorous.
my means like ur says: short + short
smallNum= (smallNum)(smallNum +-/ smallNum)
//or (smallNum +-/ smallNum) or (smallNum +-*/ LargeNum)

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