我曾经参与过Windows 3.0的源代码。(我赶紧补充一句，作为一名微软员工，不是!)在那里，我遇到了一个文件加载器，它可以多次重新输入，并且有一个讨厌的双关语的例子(只是为了显示作者有多聪明)。

这些乱七八糟的可重入代码是用Intel程序集jmp指令(在C代码中间)执行的，它的标签是“we_are_not_in_kansas_any_more_toto”。

我曾经想出了一个我认为很优雅的解决方案来解决一个特别棘手的问题，现在回想起来，这有点令人费解，并且大量使用了宏编程。多年以后，我从一个维护程序员那里发现了这条评论

/*
    Description: The Total Perspective Vortex derives its picture of the
                 whole Universe  on the principle of extrapolated matter
                 analyses.

                 To  explain  -  since every piece of matter in the Universe
                 is in some way affected by every other piece of matter in
                 the  Universe,  it  is  in  theory possible to extrapolate
                 the whole of creation - every sun, every planet, their
                 orbits, their composition and their economic and social
                 history from, say, one small Macro.

                 The man who invented the Total Perspective Vortex did so
                 basically in order to annoy the IT department.

                 Steve Weet - for that was his name - was a dreamer, a
                 thinker, a speculative philosopher or, as some would have
                 it, a slacker.

                 And they would nag him incessantly about the utterly
                 inordinate amount of time he spent staring out into space,
                 or mulling over the mechanics of Chelsea FC, or doing
                 spectrographic analyses of macros.

                 "Have  some  sense  of  proportion!"  they would say,
                 sometimes as often as thirty-eight times in a single day.

                 And so he built the Total Perspective Vortex - just to show
                 them.

                 And into one end he plugged the whole of reality as
                 extrapolated  from one  macro, and into the other
                 end he plugged the IT department: so that when he turned it
                 on they saw in one instant the whole infinity of creation 
                 and theirselves in relation to it.

                 To  Steve Weet's horror, the shock completely annihilated '
                 their brains; but to his satisfaction he realized that he
                 had proved conclusively that if life is going to exist in a
                 Universe of this size, then the one thing it cannot afford
                 to have is a sense of proportion.

*/

来自:https://github.com/zepouet/xee - xcode 4.5 - / - blob/master/xeephotoshoploader.m # L108

// At this point, I'd like to take a moment to speak to you about the Adobe PSD
// format. PSD is not a good format. PSD is not even a bad format. Calling it
// such would be an insult to other bad formats, such as PCX or JPEG. No, PSD
// is an abysmal format. Having worked on this code for several weeks now, my
// hate for PSD has grown to a raging fire that burns with the fierce passion
// of a million suns.
//
// If there are two different ways of doing something, PSD will do both, in
// different places. It will then make up three more ways no sane human would
// think of, and do those too. PSD makes inconsistency an art form. Why, for
// instance, did it suddenly decide that *these* particular chunks should be
// aligned to four bytes, and that this alignement should *not* be included in
// the size? Other chunks in other places are either unaligned, or aligned with
// the alignment included in the size. Here, though, it is not included. Either
// one of these three behaviours would be fine. A sane format would pick one.
// PSD, of course, uses all three, and more.
//
// Trying to get data out of a PSD file is like trying to find something in the
// attic of your eccentric old uncle who died in a freak freshwater shark
// attack on his 58th birthday. That last detail may not be important for the
// purposes of the simile, but at this point I am spending a lot of time
// imagining amusing fates for the people responsible for this Rube Goldberg of
// a file format.
//
// Earlier, I tried to get a hold of the latest specs for the PSD file format.
// To do this, I had to apply to them for permission to apply to them to have
// them consider sending me this sacred tome. This would have involved faxing
// them a copy of some document or other, probably signed in blood. I can only
// imagine that they make this process so difficult because they are intensely
// ashamed of having created this abomination. I was naturally not gullible
// enough to go through with this procedure, but if I had done so, I would have
// printed out every single page of the spec, and set them all on fire. Were it
// within my power, I would gather every single copy of those specs, and launch
// them on a spaceship directly into the sun.
//
// PSD is not my favourite file format.

switch(value)
{
   [...]
default:
   ASSERT(**true**); // if this is triggered, something really bad is happening.
}

else
{
    //error situation
}

// Empty constructor to satisfy the stupid compiler
 Public ServletHandlerClass () { }