i m saying it d be nice if i didn t have to write `toDouble

Question

i m saying it d be nice if i didn t have to write `toDouble ` all over my mathematics in kotlin expressionless

karelpeeters · Answer

Okay but that s for both of my above cases do you want both to go to doubles

Hullaballoonatic · Answer

automatically yeah

karelpeeters · Answer

The first one I understand I agree that it s annoying without any real safety benefits

Hullaballoonatic · Answer

also is double just a float with twice the memory allocated

karelpeeters · Answer

But `3 2` is just integer arithmetic and we need that too

Hullaballoonatic · Answer

i know i learned that at one point but forgot it because i learned it before it was of any practical use to me

karelpeeters · Answer

Yes double is float with more bits

Hullaballoonatic · Answer

meaning you want `3 2` to round to remain as an int

karelpeeters · Answer

Yes I use that a lot

Hullaballoonatic · Answer

ah good point

Hullaballoonatic · Answer

i guess i never considered it because in java you have to use ceiling and cast back to int

karelpeeters · Answer

No it s the same in Java and every other C like language there is

Hullaballoonatic · Answer

or i think casting back to int does that by itself now that i think about it

karelpeeters · Answer

Not even a cast that s literally what on its does

Hullaballoonatic · Answer

nvm me then i m dumb

karelpeeters · Answer

That s also what the dedicated CPU instruction does

Hullaballoonatic · Answer

i just like my math equations in my code to be devoid of much other than variables numbers and mathematical operators

Hullaballoonatic · Answer

the casting distracts the eye from the important parts

Chris Cunningham · Answer

Just write it with the decimal point 3 0 2 0

Chris Cunningham · Answer

Otherwise it would think you are working with int and not double

Hullaballoonatic · Answer

maybe the same reason i don t like ` foo isEmpty` and prefer `foo isNotEmpty`

Hullaballoonatic · Answer

yeah you re very correct Chris

Hullaballoonatic · Answer

but that doesn t work if your integers are stored as variables

Chris Cunningham · Answer

Oh so you mean wanting to divide ints with a double result

Hullaballoonatic · Answer

```val foo = 3 val bar = 3 println foo + bar ``` does not compile

Chris Cunningham · Answer

Yeah need to cast one of them

Hullaballoonatic · Answer

i ve been dissuaded from dividing ints into automatic doubles

Chris Cunningham · Answer

I still rather cast type conversion should be explict

Hullaballoonatic · Answer

maybe i just like java s casting more than kotlin s

Chris Cunningham · Answer

Talking as vs a cstyle cast

Hullaballoonatic · Answer

` int ` is a lot less verbose than `toInt `

Hullaballoonatic · Answer

or `as Int`

Hullaballoonatic · Answer

but i get it

Hullaballoonatic · Answer

there s no perfect solution here and i appreciate hearing the counter arguments

Chris Cunningham · Answer

Yeah I am pretty used to the c style ones

Chris Cunningham · Answer

Not sure about kotlin but in C ` T ` has a different meaning then `as T` as well

karelpeeters · Answer

Btw if you re really frustrated about this you can define generate code like `inline operator fun Double plus other Int = this + other toDouble ` and friends

Hullaballoonatic · Answer

okay thanks Karel you re so helpful

Chris Cunningham · Answer

just be sure that is known and does not confuse the crap out of the rest of the devs on the project