Am Dienstag, den 21.06.2005, 19:21 +0200 schrieb Marco van de Voort: > > in an application of mine occurs a lot of string separation and > > re-concatenation. Since it is using masses of ANSI strings this is some > > performance problem. > > > > The strings get stored and loaded from TStringList's and concatenated > > by simply using '+' and separated with the function copy(). > > You could try to avoid repeated setlengths. However this would require > two passes, something like > > tot:=0; > for i:=0 to strlst.count-1 do inc(tot,length(strlst[i])); > setlength(targetstring,tot); > j:=1; > for i:=0 to strlst.count-1 do > begin > move (targetstring[j],strlst[i]); > inc(j,length(strlst[i])); > end; >
So in general reserving buffer space and copying all string in and finally setting the length would be the way to go here, if I understand correctly. > Posting more code would help too. See my other mail. Thanks, Marc _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
