The D Programming Language

[Scott Daniels]

In article <587 at bms-at.UUCP> stuart at bms-at.UUCP (Stuart D. Gathman) writes:
>Another example is string comparison.  I use a string compare function
>that returns the index of the first different character.  I also
>need the gt/lt/eq result.  Fortunately, in this case it is easily 
>computed by recomparing the chars at the index. 

An alternative is the string comparison I normally use:

	cmpstr(s1,s2)
0: if equal
>0: if s1 > s2
<0: if s1 < s2

abs(cmpstr(s1,s2)) is the number of chars compared:
  s1[ abs(cmpstr(s1,s2))-1 ] != s2[ abs(cmpstr(s1,s2))-1 ]
  if cmpstr did not return 0.  Normally this function returns just
  about any information I need, and it is usually not very hard to
  make an extremely fast version in assembly.

-Scott Daniels (daniels at teklds.TEK.COM)