Online IDE for almost any SW lang you can think of

Take a look at this one: http://ideone.com/


It supports:
Ada, Assembler, AWK, Bash, bc, Brainf**k, C, C#, C++ se, C++0x, C99 strict, CLIPS, Clojure, COBOL, COBOL 85, Common Lisp (clisp), D (dmd), Erlang, F#, Factor, Falcon, Forth, Fortran, Go, Groovy, Haskell, Icon, Intercal, Java, JavaScript (rhino), JavaScript (spidermonkey), Lua, Nemerle, Nice, Nimrod, Objective-C, Ocaml, Oz, Pascal (fpc), Pascal (gpc), Perl, Perl 6, PHP, Pike, Prolog (gnu), Prolog (swi), Python, Python 3, R, Ruby, Scala, Scheme (guile), Smalltalk, SQL, Tcl, Text, Unlambda, Visual Basic .NET, Whitespace


It's very useful when you want to check little programs, like the ones I tried when writing Freaking behavior of a small little C/C++ bug:

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