Conditional logical operator working with =

Question

I know that the following code will execute both the left and right expressions :

bool myBool = true;
myBool &= Foo();

Is there any way to write the same way (a kind of &&=) a code that will produce :

bool myBool = true;
myBool = myBool &&  Foo();

Instead of

myBool = myBool & Foo();

Be specific in what you mean with "write the same way". Judging on the answer you weren't very clear. — Patrick Hofman, Jul 18 '16 at 09:59
nothing, i just would be sure there wasn't another way to write it without writing two times `myBool` — Béranger, Jul 18 '16 at 10:28

score 3 · Accepted Answer · answered Jul 18 '16 at 09:58

3

There is no operator &&= in C#. So you can't do this.

For the list of all operators, take a look on MSDN.

answered Jul 18 '16 at 09:58

dymanoid

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score 2 · Answer 2 · answered Jul 18 '16 at 09:55

2

If you want Foo() be executed, just swap:

  bool myBool = ...;
  myBool = Foo() && myBool;

answered Jul 18 '16 at 09:55

Dmitry Bychenko

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1

Thanks but I don't wan't it to be executed. It is when i use `myBool &= Foo()` – Béranger Jul 18 '16 at 09:58

score 1 · Answer 3 · answered Jul 18 '16 at 10:05

1

Will this answer your question? (wasn't really clear)

bool myBool = true;
myBool = myBool ||  (!myBool && Foo());

Only if the myBool is false then the function will be executed

answered Jul 18 '16 at 10:05

Gilad Green

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score 0 · Answer 4 · edited Dec 08 '21 at 06:49

As already mentioned there is no &&=-operator thus you can´t overload any. For a list of operators you can overload for any type see here. For assignement-operators there are no overloads defined at all:

Assignment operators cannot be overloaded, but +=, for example, is evaluated using +, which can be overloaded.

So your current approach using myBool && Foo(); is the way to go.

As mentioned on this post the IL for &= and & are equal making the former just syntactic sugar of the latter. So there´d be no real value on creating such an operator as all its use would be to get rid of a few characters.

Conditional logical operator working with =

4 Answers4