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The Weird and The Wonderful

   

The Weird and The Wonderful forum is a place to post Coding Horrors, Worst Practices, and the occasional flash of brilliance.

We all come across code that simply boggles the mind. Lazy kludges, embarrassing mistakes, horrid workarounds and developers just not quite getting it. And then somedays we come across - or write - the truly sublime.

Post your Best, your worst, and your most interesting. But please - no programming questions . This forum is purely for amusement and discussions on code snippets. All actual programming questions will be removed.

 
GeneralRe: Let's "switch" to Something Else Pin
Brisingr Aerowing2-Apr-13 13:13
professionalBrisingr Aerowing2-Apr-13 13:13 
GeneralRe: Let's "switch" to Something Else Pin
Freak302-Apr-13 22:44
memberFreak302-Apr-13 22:44 
GeneralRe: Let's "switch" to Something Else Pin
Bernhard Hiller2-Apr-13 23:29
memberBernhard Hiller2-Apr-13 23:29 
GeneralRe: Let's "switch" to Something Else Pin
PIEBALDconsult3-Apr-13 6:13
memberPIEBALDconsult3-Apr-13 6:13 
GeneralRe: Let's "switch" to Something Else Pin
H.Brydon13-Apr-13 15:22
memberH.Brydon13-Apr-13 15:22 
GeneralRe: Let's "switch" to Something Else Pin
PIEBALDconsult13-Apr-13 20:39
memberPIEBALDconsult13-Apr-13 20:39 
GeneralRe: Let's "switch" to Something Else Pin
H.Brydon14-Apr-13 10:07
memberH.Brydon14-Apr-13 10:07 
GeneralRe: Let's "switch" to Something Else Pin
OriginalGriff3-Apr-13 7:25
mvpOriginalGriff3-Apr-13 7:25 
It's ugly, yes.

But it also has the potential to be fast. By loading the three characters and one space into a machine word, it is a single machine instruction to compare each value, and if the compiler spots that - and it damn well should - then it can use a machine-word look up table and index into a machine-word jump table. And you can't get much faster than that!

If this is in time-critical code, then it could be justified. Provided it was well commented. If it's in user input handling, then the author needs to meet Mr Firing Squad for being too "clever". Laugh | :laugh:
The universe is composed of electrons, neutrons, protons and......morons. (ThePhantomUpvoter)

GeneralRe: Let's "switch" to Something Else Pin
Tom Delany3-Apr-13 9:02
memberTom Delany3-Apr-13 9:02 
GeneralRe: Let's "switch" to Something Else Pin
OriginalGriff3-Apr-13 9:14
mvpOriginalGriff3-Apr-13 9:14 
GeneralRe: Let's "switch" to Something Else Pin
BobJanova4-Apr-13 0:27
memberBobJanova4-Apr-13 0:27 
GeneralRe: Let's "switch" to Something Else Pin
jibalt5-Apr-13 20:20
memberjibalt5-Apr-13 20:20 
GeneralRe: Let's "switch" to Something Else Pin
BobJanova8-Apr-13 1:48
memberBobJanova8-Apr-13 1:48 
GeneralRe: Let's "switch" to Something Else Pin
jibalt9-Apr-13 0:42
memberjibalt9-Apr-13 0:42 
GeneralRe: Let's "switch" to Something Else Pin
BobJanova10-Apr-13 0:23
memberBobJanova10-Apr-13 0:23 
GeneralRe: Let's "switch" to Something Else Pin
jibalt10-Apr-13 7:33
memberjibalt10-Apr-13 7:33 
GeneralRe: Let's "switch" to Something Else Pin
Rob Grainger9-Apr-13 3:59
memberRob Grainger9-Apr-13 3:59 
GeneralRe: Let's "switch" to Something Else Pin
jschell9-Apr-13 10:05
memberjschell9-Apr-13 10:05 
GeneralRe: Let's "switch" to Something Else Pin
jibalt10-Apr-13 7:34
memberjibalt10-Apr-13 7:34 
GeneralRe: Let's "switch" to Something Else Pin
jschell10-Apr-13 9:17
memberjschell10-Apr-13 9:17 
GeneralRe: Let's "switch" to Something Else Pin
jibalt25-Apr-13 16:44
memberjibalt25-Apr-13 16:44 
GeneralRe: Let's "switch" to Something Else Pin
NAANsoft9-Apr-13 2:25
memberNAANsoft9-Apr-13 2:25 
GeneralRe: Let's "switch" to Something Else Pin
Rob Grainger9-Apr-13 4:01
memberRob Grainger9-Apr-13 4:01 
GeneralRe: Let's "switch" to Something Else Pin
NAANsoft9-Apr-13 5:23
memberNAANsoft9-Apr-13 5:23 
GeneralRe: Let's "switch" to Something Else Pin
jschell9-Apr-13 10:03
memberjschell9-Apr-13 10:03 

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