Assignment in IF Clause

[Skyld]

Originally Posted by JustBreathe

It doesn't set anything at all. It totally ignores the assignment. I thought it was to prevent those who do if ( player.chat = "command" ) stuff;, but... Just because they have no notion of what an assignment operator does, doesn't mean that we should follow suit and make it into a comparison operator when those who do know have, now, no way of using the assignment operator.

What exactly are you expecting an assignment to return?

[JustBreathe]

Originally Posted by Skyld

What exactly are you expecting an assignment to return?

temp.var = temp.var2 = temp.var3 = true;

is the same as

temp.var = ( temp.var2 = ( temp.var3 = true ) );
temp.var = ( temp.var2 = true );
temp.var = ( true );

if ( temp.var )... Temp.var would return true.

[Skyld]

Originally Posted by JustBreathe

temp.var = temp.var2 = temp.var3 = true;

is the same as

temp.var = ( temp.var2 = ( temp.var3 = true ) );
temp.var = ( temp.var2 = true );
temp.var = ( true );

if ( temp.var )... Temp.var would return true.

So if you want it to return the value of the variable that you are assigning to, why did you not just say so?

[JustBreathe]

Originally Posted by Skyld

So if you want it to return the value of the variable that you are assigning to, why did you not just say so?

If you used it in other languages, as does the person I was addressing the problem to has probably done, you would have understood.

[ApothiX]

Originally Posted by Skyld

So if you want it to return the value of the variable that you are assigning to, why did you not just say so?

It has practical applications mainly with functions that return false on error. Instead of having to have two separate lines you can do it all in one.

ie:

PHP Code:

// ..
if(!(temp.blah = Foo(this.bar))) {
  echo("ZOMG ERROR");
}
// ..
function Foo(bar) {
  if(bar < 10) return false;
  else return bar % 10;
}