| and & vs || and &&?

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phflack:
does it matter if things short circuit in BL though?
i don't see the point as much when it doesn't complain too much (ie, instead of stopping the program)

DontCare4Free:

--- Quote from: phflack on March 11, 2012, 11:36:18 PM ---does it matter if things short circuit in BL though?
i don't see the point as much when it doesn't complain too much (ie, instead of stopping the program)

--- End quote ---

--- Code: ---if (somethingThatMayFail() & somethingElseThatMayFailThatIsIndependent()) {
// Bleh
}

--- End code ---
vs

--- Code: ---if (somethingThatMayFail() && somethingThatDependsOnTheFirstFunction()) {
// Bleh
}

--- End code ---

Port:

--- Quote from: DontCare4Free on March 12, 2012, 02:30:57 AM ---
--- End quote ---

An example of the importance this has could be something like the following:

--- Code: ---if ( isObject( %pl = %cl.player ) && ( !isObject( %mn = %pl.getMountedImage( 0 ) ) || %mn.getName() !$= "myWeaponImage" ) )
{
%pl.mountImage( myWeaponImage, 0 );
}

--- End code ---

If && and || weren't short-circuit, this would cause console errors if there was no player or they were not holding something in slot 0.

phflack:

--- Quote from: Port on March 12, 2012, 04:15:07 AM ---An example of the importance this has could be something like the following:

--- Code: ---if ( isObject( %pl = %cl.player ) && ( !isObject( %mn = %pl.getMountedImage( 0 ) ) || %mn.getName() !$= "myWeaponImage" ) )
{
%pl.mountImage( myWeaponImage, 0 );
}

--- End code ---

If && and || weren't short-circuit, this would cause console errors if there was no player or they were not holding something in slot 0.

--- End quote ---
true, it does stop console errors, but it doesn't change the functionality, does it?

Ipquarx:

--- Quote from: ThinkInvisible on March 11, 2012, 10:34:37 AM ---Yes, it does.
Ex. containerRadiusSearches:
--- Code: ---while(%storage = containerSearchNext)
--- End code ---
While there are objects that can be found by the search, while loop is true.

--- Code: ---%a = 0;
while(%a = 1)
%a += 1;
--- End code ---
infinite loop - and actually runs, because %a can be set to 1

--- End quote ---
This is ridiculous. Absolutely ridiculous. NO. ITS NOT. YOU'RE WRONG.
== is to test if something equals something else
= is to SET SOMETHING to SOMETHING ELSE.

Oh my gosh.

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