Hello,

This morning, I compiled a code using FPC (Windows, rev. 2013/09/01), after that, my tests using dataset.locate has stopped.

The Locate method locates record, even when it does not exists. The problem occurs only with varchar fields, in integer fields it works fine.

In attachment I'm sending a small project to reproduce it. Here in my machine I made two tests, please see the log below:

Result in FPC 2.6.2:

test.exe
output: N
output: N

Result in FPC 2.7.1:

test.exe
output: N
output: Y

Can you test it in FPC from trunk?

Thank you!

silvioprog wrote / napísal(a):

I guess, that root of this problem is same like in bug report: http://bugs.freepascal.org/view.php?id=25016
For sorting/locating are used these string comparasion function: AnsiCompareText resp. AnsiCompareStr
Can you test directly these functions in any simple string comparation test ?
I expect, that these functions will return wrong results ? (may be that string encoding enters into play also? ... ) -Laco.

2013/10/24 LacaK

In this tests:

  if AnsiCompareStr('a', 'a') = 0 then
    WriteLn('Yes')
  else
    WriteLn('No');
  if AnsiCompareText('a', 'a') = 0 then
    WriteLn('Yes')
  else
    WriteLn('No');

Both returns "Yes".