while (*s++ = ((*t & 0x60) == 0x40 ? *t ^ 0x20 : *t)) t++;

[NormDroid]

I just had the debugger out, cranking it through.

Two heads are better than one.

[Lost User]

But it only xors with 0x20 if it's already upper case (or a non-ascii char between 0xC0 and 0xDF) Undeserved 2-vote.

modified on Monday, August 30, 2010 12:28 PM

[peterchen]

someone who knows his ASCII :)

Agh! Reality! My Archnemesis![^]
| FoldWithUs! | sighist | WhoIncludes - Analyzing C++ include file hierarchy

[Lost User]

Well, to be honest, I did take a look at the ASCII table.. before that I wasn't sure enough of my answer to post it Undeserved 1-vote.

modified on Monday, August 30, 2010 12:28 PM

[Member 96]

Cause a developer to get fired? Or at least a stern talking to?

---

Yesterday they said today was tomorrow but today they know better. - Poul Anderson

[Jonas Hammarberg]

Copying string, turning upper case into lower case...

[hdjim]

increment the address of s set the value of s to the value of t and increment t. the value of t is dependent on the if statement. AND the value of t with 0x60 and if bit 6 is set, make the value of s = the value of t exclusive ored with 32,otherwise set s to the value of t... then increment the address of t. do this until the value of s is not true.

modified on Monday, August 30, 2010 9:33 AM

[ehoagland66]

I used to write my code like this until my boss beat me with stick and took my coffee cup :laugh:

[philcaetano]

Trying to figure this out, will causes someone to lose more productive than the multi-monitor/multi-tasking debate. ;P

[Andreas Mertens]

I remember using this technique for an assembly program I wrote many years ago. When I worked out what it was doing, it took a moment to realize why it look familiar... Andreas Mertens

[Larry G Grimes]

It definitely returns a string with all lowercase characters.

[M i s t e r L i s t e r]

wastes a lot of peoples time on this site ?

[tom1443]

This looks like an job interview question, in which case I don't want the job.

[PHLIPH]

Yeah, converts to lower case is right - but don't forget it also does '@' => '`', '[' => '{', '\' => '|', ']' => '}', '^' => '-', and '_' => del. Just felt the need to punctuate it. :)

[neil hudson]

It corrupts strings with @ [ \ ] ^ and _ in them.

Neil Hudson

[Rosenne]

Only in America... I mean, only for US ASCII. :thumbsdown:

[yoni at jefco]

I was going to say "Hopefully get someone sacked". Maybe a bit harsh on my part.

[Matthew Barnett]

Larry G. Grimes wrote:

It definitely returns a string with all lowercase characters.

It'll change other characters too, such as '@' to '`'!

[Jonas Hammarberg]

Worked for ANSI to, albeit only the lower parts :rolleyes:

[Lev Vayner]

maybe the author should start writing normal code.. in c#, this would be done with s.ToLower() yeah.. thats it.. no non-sense pointer code with an inline loop referencing hex values