The Nineteenth Byte

    union Abomination {
        int loc;
        int *pLoc;
    }

    Abomination dont_do_this;
    dont_do_this.loc = loc;
    int *c = dont_do_this.pLoc;

Phoenix

@Cowsquack Yes

DJMcMayhem

How do you like my var names? :P

Phoenix

5:11 PM

You can tell because Assembly (as, x64, Linux)

Leaky Nun

@DJMcMayhem still segfaults

DJMcMayhem

6 mins ago, by Business Cat

That's a segfault waiting to happen

That's because you probably aren't allowed to touch wherever the value of loc happens to randomly point at

Also, what is int c = b;?

Riley

@LeakyNun d (usually won't) point to a valid address.

Leaky Nun

@Riley but logically it would

DJMcMayhem

Why?

Riley

5:14 PM

@LeakyNun It isn't initialized. In this case, it's probably 0.

Leaky Nun

@DJMcMayhem just look into my code

@Riley I actually initialized it

Riley

@LeakyNun Where?

Leaky Nun

@Riley b[0]=2?

Riley

@LeakyNun That has nothing to do with d.

Leaky Nun

@Riley but d is c which is b

DJMcMayhem

5:16 PM

@LeakyNun I have. I don't quite get it. What is int c = b supposed to do?

c != b because b is a pointer, and c is an int

Leaky Nun

I cast it

DJMcMayhem

No you didn't

Riley

You are copying into the address that d points to, but you never set the address that d points to.

DJMcMayhem

@LeakyNun Ooooooh, you want memcpy(&d,&c,sizeof(int*));

That's right

Dennis

@Cowsquack Shocking.

DJMcMayhem

5:18 PM

memcpy(d,&c,sizeof(int*)); is copying into the location of d (unassigned), not the pointer itself

@Riley (thanks)

Riley

@LeakyNun If you allocate memory for d it doesn't seg foult

Leaky Nun

@Riley no, I want d to be equal to b

DJMcMayhem

Try it online! seems to do what you want (notice that the last line still segfaults though)

Riley

@LeakyNun Oh, then do what DJMcMayhem said.

Leaky Nun

@Riley then it segfaults

DJMcMayhem

5:21 PM

Of course it does

Dennis Ritchie would be turning over in his grave.

Riley

I guess I'm still not quite sure what you're trying to do.

caird coinheringaahing

Can someone have a look at this? I'm thinking of posting and want a last minute check

Poke

Elon Musk's new website

Phoenix

._.

totallyhuman

ಠ_ಠ

Business Cat

5:35 PM

@Poke something.com

Poke

@BusinessCat at least that one has html

lulz

Leaky Nun

CMC: 1^2 + 2^2 + ... + n^2

DJMcMayhem

Given N?

Leaky Nun

sure

DJMcMayhem

:U in MATL

And R² in jelly I think?

Leaky Nun

5:42 PM

@DJMcMayhem what sorcery is this

@DJMcMayhem no it wouldn't work

DJMcMayhem

Oh sorry, I misunderstood

@LeakyNun :Us

Business Cat

R²S is Jelly

totallyhuman

english: range, vector square, sum

Riley

@LeakyNun 05AB1E, 3 bytes: LnO

Leaky Nun

try to do it... in languages where this wouldn't be trivial

DJMcMayhem

5:43 PM

That would be a great challenge for brain-flak

Leaky Nun

@DJMcMayhem no it wouldn't

DJMcMayhem

I'll do that in a few minutes

@LeakyNun Totally would

Leaky Nun

it's just a cubic polynomial

totallyhuman

well if i manage to implement range and map in ,,,: R[2*]#

Leaky Nun

do it in oasis

totallyhuman

5:45 PM

lambda n:sum(i**2for i in range(1,n))

Leaky Nun

@totallyhuman you can get smaller

Business Cat

@totallyhuman In Gaia I made range and map but I haven't made a n^2 operator yet so I guess I have the opposite problem ¯\_(ツ)_/¯

totallyhuman

if it involves crazy math i have no idea :P

Leaky Nun

@BusinessCat just multiply n by itself

2 mins ago, by Leaky Nun

it's just a cubic polynomial

Business Cat

I also don't have a sum operator yet so I'd have to reduce by addition

Leaky Nun

5:49 PM

@BusinessCat what is Σ?

oh, notImplemented

Business Cat

It going to be sum, I just haven't made it

I could do it in 5 bytes for now: :×†+⊢

Riley

@LeakyNun Brain-Flak, 36 bytes: ({<(({}[()])())>{({})({}[()])}{}}{})

Leaky Nun

@Riley nice

Phoenix

Sum could be unary addition on lists.

DJMcMayhem

34: Try it online!

Business Cat

5:50 PM

36 is a lot shorter than I expected it to be

DJMcMayhem

I bet it could be shorter still

Leaky Nun

4 mins ago, by Leaky Nun

2 mins ago, by Leaky Nun

it's just a cubic polynomial

Business Cat

@BusinessCat When I actually make these operators it'd just be s¦Σ

Leaky Nun

CMC (language-specific): write some code so that + would be evaluated as *

totallyhuman

#define + * i think

Leaky Nun

5:53 PM

language specific because it might not be possible in some languages

Business Cat

Evaluated as * normally is in that language?

totallyhuman

i don't know c though

Leaky Nun

@BusinessCat I mean, addition as multiplication

Phoenix

At least one language out there, +=*. plsplspls

totallyhuman

@totallyhuman is that right? anybody who can c?

DJMcMayhem

5:54 PM

o/

Phoenix

int operator +(this int a,int b)=>a*b works in C# I think maybe?

DJMcMayhem

It's right

Business Cat

Oh yeah, in Scheme you can do (define + *)

Leaky Nun

@DJMcMayhem but it would produce side effect like +a being treated as a pointer?

DJMcMayhem

Yes

totallyhuman

5:55 PM

lol

DJMcMayhem

It would scan through the whole file before compiling, look for any occurences of +, and replace it with * before getting to the compilation stage.

totallyhuman

in python you'd probably just redefine int.__add__ and other classes

int.__add__ = int.__mul__

Peter Taylor

@Phoenix No, you can't define extension methods for operators

totallyhuman

aw it doesn't allow it

Business Cat

TypeError: can't set attributes of built-in/extension type 'int'

DJMcMayhem

5:57 PM

Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AM
D64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> int.__add__ = int.__mul__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't set attributes of built-in/extension type 'int'
>>>

totallyhuman

you both were ninja'd

DJMcMayhem

I know

Leaky Nun

imaginary cookie for anyone who does it via java reflection