Empty program: Difference between revisions
(→[[C plus plus|C++]]: Corrected: main *may not* return anything but int, but for main the return statement is optional (no matter what the MS compiler tells you)) |
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=Programming Languages= |
=Programming Languages= |
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==[[Ada]]== |
==[[Ada]]== |
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[[Category:Ada]] |
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'''Compiler:''' [[GCC]] 4.1.2 |
'''Compiler:''' [[GCC]] 4.1.2 |
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==[[BASIC]]== |
==[[BASIC]]== |
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[[Category:BASIC]] |
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'''Compiler:''' [[QBASIC]] |
'''Compiler:''' [[QBASIC]] |
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==[[C]]== |
==[[C]]== |
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[[Category:C]] |
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'''Compiler:''' [[GCC]] 4.0.3 |
'''Compiler:''' [[GCC]] 4.0.3 |
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} |
} |
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==[[C |
==[[C sharp|C#]]== |
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[[Category:C sharp]] |
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'''Compiler:''' Microsoft (R) Visual C# 2005 Compiler version 8.00 |
'''Compiler:''' Microsoft (R) Visual C# 2005 Compiler version 8.00 |
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==[[C plus plus|C++]]== |
==[[C plus plus|C++]]== |
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[[Category:C plus plus]] |
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'''Compiler:''' [[GCC]] 4.0.3 |
'''Compiler:''' [[GCC]] 4.0.3 |
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==[[Haskell]]== |
==[[Haskell]]== |
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[[Category:Haskell]] |
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'''Standard:''' [[Haskell98]] |
'''Standard:''' [[Haskell98]] |
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==[[Java]]== |
==[[Java]]== |
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[[Category:Java]] |
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'''Compiler:''' Sun [[javac]], [[JDK]] 1.5.0 and up |
'''Compiler:''' Sun [[javac]], [[JDK]] 1.5.0 and up |
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==[[Pascal]]== |
==[[Pascal]]== |
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[[Category:Pascal]] |
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'''Compiler:''' [[Borland Pascal]] |
'''Compiler:''' [[Borland Pascal]] |
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==[[Perl]]== |
==[[Perl]]== |
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[[Category:Perl]] |
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'''Interpreter:''' [[Perl]] 5.8.8 |
'''Interpreter:''' [[Perl]] 5.8.8 |
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==[[PHP]]== |
==[[PHP]]== |
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[[Category:PHP]] |
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<?php ?> |
<?php ?> |
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==[[Ruby]]== |
==[[Ruby]]== |
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[[Category:Ruby]] |
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'''Interpreter:''' [[Ruby]] 1.8.5 |
'''Interpreter:''' [[Ruby]] 1.8.5 |
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==[[UNIX Shell]]== |
==[[UNIX Shell]]== |
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[[Category:UNIX Shell]] |
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'''Interpreter:''' [[Debian Almquist SHell]] |
'''Interpreter:''' [[Debian Almquist SHell]] |
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==[[Visual Basic .NET|VB.NET]]== |
==[[Visual Basic .NET|VB.NET]]== |
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[[Category:Visual Basic]] |
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'''Compiler:''' Microsoft (R) Visual Basic Compiler version 8.0 |
'''Compiler:''' Microsoft (R) Visual Basic Compiler version 8.0 |
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==[[xTalk]]== |
==[[xTalk]]== |
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[[Category:xTalk]] |
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'''Interpreter:''' [[HyperCard]] |
'''Interpreter:''' [[HyperCard]] |
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=Markup Languages= |
=Markup Languages= |
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==[[LaTeX]]== |
==[[LaTeX]]== |
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[[Category:LaTeX]] |
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'''Compiler:''' [[pdfeTeXk]], Version 3.141592-1.30.4-2.2 (Web2C 7.5.5), [[LaTeX2e]] (2003/12/01) |
'''Compiler:''' [[pdfeTeXk]], Version 3.141592-1.30.4-2.2 (Web2C 7.5.5), [[LaTeX2e]] (2003/12/01) |
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Revision as of 02:43, 24 January 2007
![Task](http://static.miraheze.org/rosettacodewiki/thumb/b/ba/Rcode-button-task-crushed.png/64px-Rcode-button-task-crushed.png)
You are encouraged to solve this task according to the task description, using any language you may know.
In this task, the goal is to create the simplest possible program that is still considered "correct."
Programming Languages
Ada
Compiler: GCC 4.1.2
procedure Empty is begin null; end;
BASIC
Compiler: QBASIC
END
C
Compiler: GCC 4.0.3
int main (int argc, char *argv[]) { return 0; }
C#
Compiler: Microsoft (R) Visual C# 2005 Compiler version 8.00
static class Program { static void Main(string[] args) { } }
C++
Compiler: GCC 4.0.3
int main ( int /*argc*/, char * * /*argv*/ ) { // Unused arguments should not be named // There are variations: // 1: main may explicitly return a value // (other non-void-returning C++ functions must do so, // but there's a special exception for main that falling off it // without an explicit return is equivalent to a "return 0;" at // the end of the main function) // 2: The arguments may be omitted entirely }
Haskell
Standard: Haskell98
module Main where
main :: IO () main = return ()
Java
Compiler: Sun javac, JDK 1.5.0 and up
public class EmptyMainClass { public static void main(String[] args) { } }
public class EmptyApplet extends java.applet.Applet { @Override public void init() { } }
Compiler: Sun javac, JDK 1.0 and Up
public class EmptyMainClass { public static void main(String[] args) { } }
public class EmptyApplet extends java.applet.Applet { public void init() { } }
@Override will be telling the compiler need to override this function. It's presents from JDK 5.0 (1.5.0) and up
Actually this is not strictly correct. The smallest possible correct program in Java is an empty source file.
Pascal
Compiler: Borland Pascal
program ProgramName; begin end.
Perl
Interpreter: Perl 5.8.8
#!/usr/bin/perl
Is this correct? As far as I am aware, that is a shell statement, not perl code. It instructs the shell as to where to find the interpreter to use.
#!/usr/bin/ksh
Would use the korn shell. etc..?
PHP
<?php ?>
Python
Interpreter: Python 2.4.3
#!/usr/bin/env python
Ruby
Interpreter: Ruby 1.8.5
#!/usr/bin/env ruby
Starting an Interactive RuBy shell
irb
UNIX Shell
Interpreter: Debian Almquist SHell
#!/bin/sh
Interpreter: Bourne Again SHell
#!/bin/bash
VB.NET
Compiler: Microsoft (R) Visual Basic Compiler version 8.0
Module General Sub Main() End Sub End Module
xTalk
Interpreter: HyperCard
on startup end startup
Markup Languages
LaTeX
Compiler: pdfeTeXk, Version 3.141592-1.30.4-2.2 (Web2C 7.5.5), LaTeX2e (2003/12/01)
\documentclass{article} \begin{document} \end{document}