triplegolf - not only the source code length counts!

Question

The goal of this challenge is to write a program where the length of the following three are exactly the same:

• the length of the source code
• the length of the output it prints to the standard output
• the length of the compiler warnings it generates with the (unmodded) compiler of your choice

The winner is the shortest code to fulfill all three criteria, and has to be at least 1 character long.

To spice things up, if the output has less than three different characters, it gets a 5 point penalty added to the length for each one (so +10 if only a single type, +5 for two).

(Newlines count either as 1 or 2 characters, your choice, but it has to be consistent through all three criteria. Leading and trailing white-spaces are ignored in all lines in all three criteria)

_{In case of equal score, the one printing the most interesting result (instead of garbage) is the winner.}

Answer 1

Bash, 23 characters

Error:

bash: /: Is a directory

Source:

echo       $0-$01234;/;

Output:

/bin/bash-/bin/bash1234

Brainf*ck, 32 characters

This code executes for about 3 seconds and stops and displays the following error and output.

Error:

bff: out of memory (-2058691272)

Source:

+++++[......-]..+[>>>>>>>>>>>>-]

Output: (Hexdump)

0505 0505 0505 0404 0404 0404 0303 0303
0303 0202 0202 0202 0101 0101 0101 0000

C, 35 characters

Warning:

b.c:1:30: warning: division by zero

Source and Output:

main(){system("cat "__FILE__)/0;;;}

PHP, 50 characters

Warning:

PHP Warning:  Division by zero in /tmp/3 on line 1

Source and Output:

<?php echo (0/0).''.file_get_contents(__FILE__);?>

Answer 2

Bash, 23 chars

echo $BASH_COMMAND 1>&2

Outputs its own source to both STDOUT and STDERR.

Answer 3

C - 48 chars

main(i){while(++i<49)putchar(i);putchar('\z');}

Note: includes a final (Unix-style) newline.

Output from gcc a.c reads:

a.c:1:41: warning: unknown escape sequence '\z'

The output from a.out is mostly non-printing chars, so here's what it looks like after piping through hexdump:

00000000: 0203 0405 0607 0809 0A0B 0C0D 0E0F 1011  ................
00000010: 1213 1415 1617 1819 1A1B 1C1D 1E1F 2021  .............. !
00000020: 2223 2425 2627 2829 2A2B 2C2D 2E2F 307A  "#$%&'()*+,-./0z

Answer 4

JavaScript, 63 66

!function x(){console.log(x+'...');eval(Array(33).join('$'))}()

The output is:

function x(){console.log(x+'...');eval(Array(33).join('$'))}...

In Chrome, the error is:

ReferenceError: $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ is not defined

Answer 5

Visual Basic .NET, 185

Gee, vbc is pretty verbose with its compilation warnings. Anyway, the code is this:

Public Module Main
    Public Sub Main()
        Console.WriteLine(New String("a"c,185))
    End Sub

    Public Function A()
        'This is actually just padding.
        'Hi
    End Function
End Module

(Note that they're supposed to be tabs, not spaces.)

The output is this:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

And the compiler warning is this:

warning BC42105: Function 'A' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.

    End Function
    ~~~~~~~~~~~~

(This time, it's actually four spaces, not tabs.)

Answer 6

C

I currently only have access to online compilers, and I couldn't find one that shows warnings.
So this program doesn't really qualify.
But the output and the compiler output surely match, and not only in length.
Getting the program length to match shouldn't be hard.

main(){system("gcc "__FILE__" 2>&1");}

Answer 7

VBA: 39

Not sure if this qualifies, given the compiler constraint, but:

Input: (in the immediate window)

For i=1 To 39:a=a & Chr(i):Next:Print a

*_{The output includes non-printing characters that don't play well in this window.}