We have equivalent assignment operators for all Logical operators, Shift operators, Additive operators and all Multiplicative operators.
Why did the logical operators get left out? Is there a good technical reason why it is hard?
Why did the logical operators get left out? Is there a good technical reason why it is hard?
They didn't. You can do &= or |= or ^= if you want.
bool b1 = false;
bool b2 = true;
b1 |= b2; // means b1 = b1 | b2
The || and && operators do not have a compound form because frankly, they're a bit silly. Under what circumstances would you want to say
b1 ||= b2;
b1 &&= b2;
such that the right hand side is not evaluated if the left hand side does not change? It seems like only a few people would actually use this feature, so why put it in?
For more information about the compound operators, see my serious article here:
https://learn.microsoft.com/en-us/archive/blogs/ericlippert/compound-assignment-part-one
and the follow-up April-Fools article here:
https://learn.microsoft.com/en-us/archive/blogs/ericlippert/compound-assignment-part-two