My challenge to you is to try and to write a program that shows its own source.

That's just as impossible as finding the last reflection of two paralell mirrors.

actually its possible, but it could screw over so much

Actually if you don't use any txt file to store the code it's impossible. Try tipping it out and you'll see the problem SFvsSS

yeah i tryed it....

yep thats true... unless you knew about how assembly language worked real good then you could display the REAL asm source of your program. other than that...

you know kylevision, this is a C++ beginners board :P

It is possible, although hard.

If you mean any code and not just the C++ code then it's simple! All Hex Editor can do it! Tell it to open itself and you'll see the mashine code. And writting a hex editor isn't at all that hard.

It is impossible to output the exact C++ code because all information about macros and comments are lost.

I dunno, the whole problem seems kind of un-defined. Would you consider it to be showing the source if I had it as a string held as a program resource? That would be easy to do. But to actually have it as a string in the source is impossible.

ok, let me say this, I dont care how you do it, make a program that shows its source.

Someone made a demo that disassembles itself and displays its asm code onto the screen. It was written in ASM. I would give you a link, but alas I have no clue what the URL was.

I don't know why you made that challenge. Did you want to know if it was possible or did you want to see if the people on the forum had those kind of skills?

Hi,

This is not impossible at all. It's possible in quite a few languages (probably all), including C/C++, without having to decompile/disassemble code. Programs like this are called "Quines". Here is an example of a quine written in C:

Cheers
OJ

EDIT: Btw, you can find an interesting and friendly programming forum at http://forum.eyedolon.com

dude-thats COOL! :D

*edit* we have more members :P but i suppose yours was started later on too....

I could do it if I knew how to use C++ language to open a file on my computer. Does anyone know how to do that? :huh:

yeah read my tutorials on the home page on files.they should be helpfull, but i think the idea was making an exe that dident read from a file display the source that was used to make it.

hehe... also can be done in BF...

PS: Yes, i still do stop by here. :D

I could do it if I knew how to use C++ language to open a file on my computer. Does anyone know how to do that?

I can't see how that will help you solve the problem. You generally don't have the source code of your program available as a file when you're running your program, and opening the source file and blatting it to the screen is cheating ;)

So I disagree with you, you can't do it just by opening the exe. You need to be smarter.

OJ

PS. Yes, the forum is quite new, give it time and it'll build up! There are other programming challenges listed in there aswell if you're interested.

there is a way to open a file on your computer(such as a notepad containing your source code) through a program. you just need to write it in code and i dont know how to do that yet. how is that cheatin? :huh:

because then its just a program that reads a file its not a program that displayes its own source after you compiled it you could change whatever you wanted the text to be in the source.

x86 ASM:

There is a quines list, PM me for the url.

Oh, and I didn't write this. ASM is torture.

depends :P
I have about 16gb of both containing source code and the binaries, its quite easy though then, I just read through an ifstream from /usr/portage/distfiles/<packagename>-<versionnumber>/work
:P

but as usual, big nono for many wwindoze apps....

Yes, a C++ quine can be done. It's online.
Here's an easy one:

Obviously that's not ANSI C or C++, but try compiling it! It should work(I think)!

i'd love to but i dont see any source :P

the code tags are empty

That's the point: the program does exactly nothing and prints itself, which is nothing. Try it; that's the shortest quine known to man.

clever ;)

its childish, its immature, its stupid... but i like it

Awesome RichyT :lol:

oh man!!!! i wish i would have thought of that first!!!!!

Hehe... well being a Gentoo user doesn't necessarily count ;) Besides, if you ship your program to another gentoo installation it might not have the distro downloaded.. so it wouldn't work..

.. but I digress :) It's a good point :D

RichyT, that's funny. :lol:

lol :huh:

i can understand the whole program but i didnt get what this printf(s,10,34,s,34,10)
since what i learned was that printf usually was used as something like print("blah");
etc. but all i code make out was that this 34 10 and 10 34 was doing some type converion but i dont know what this 10 34 means :wacko:

any help would be greatly appreciated

:)

Ask yourself what is the value of 's'

Then ask why does it look funny.
Then read the man page for printf()

i am usin windows not unix :( .
but i finally got my answer thnx a lot, looks like someone needs to really kick me to get wrk done arnd here ;)

how can you say writing a program that shows its code is impossible? you just put it in cout!!1!11!1one11!elevenhundreteleven!1

um, during the making of my program I encountered a logical error..... you ABSOLUTELY CANNOT display the console the whole program, since you would have to write everything that's in it, even the part where you display the program, but when you write and you see it on the console, you realize the code where output the program is not in the console, where the whole program apparently is. Then you write that part again, so in the console you don't only see the program, but ALSO the code where you output the code. But then you realize that the part that outputs the part that outputs (this repetition is NOT a typing mistake) is not in the program.
SO, the part where you output the source code can never be written. It is phisically impossible to do it. You can, however, output everything else. :D

violá

Piece a cake:

Nice DeAs91 B)

:D