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echo: aust_c_here
to: Adam Fitzpatrick
from: Frank Adam
date: 1996-06-04 18:35:00
subject: strwildcmp :)

G'Day Adam,
 
-=> Quoting Adam Fitzpatrick to Frank Adam <=-

 FA>it actually returns the ascii code of the character it fails on in
 FA>str1,  and negates it if *str2 > *str1. 

 AF> That's quite interesting; presumably the asm source involves lodsb and
 AF> cmp al,[es:di] or some such. Therefore the character from str1 is
 AF> already in AL, so it doesn't require any instructions to produce the
Yes, i have made an strcmp to return the char or negated char.
I'm yet to find a use for it though:)

 AF> return code. However, this wouldn't work with a character over the
 AF> value of 127, because that would be interpreted as a negative number.
Well, it does an unsigned comparison, so i presume that's correct.

 AF> Have you tried it with str1 containing such a character? (Or does the
 AF> strcmp() function assume 0 to 127 characters?)
See above :-)
No, i didn't, mainly bacause as the others pointed out it's just a fluke.
I have tried it in BC4 after those comments and it did not reproduce it,
Turbo C does.
Mind you, Turbo C runs through DOS, while BC4 in win-doze, so that may
also have something to do with it.                       

  L8r Frank (fadam{at}ozemail.com.au).
                            
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