The difference between POS and Ansipos functions in Delphi



The main difference between POS and Ansipos is that the POS parameter is used more than one character, while Ansipos is used more than one character:

For example: I:=pos (' A ', ' Sssssas ');

I:=ansipos (' abc ', ' Sdabcss ');

Ansipos is an ANSI character as a POS unit, such as Ansipos (' | ', ' Wang Apoz | ') The resulting value is 5.
POS is in bytes as POS units, such as POS (' | ', ' Wang Apoz | ') The resulting value is 4, because "' Apoz" is made up of two bytes, and its low is "|" So the result after POS is 4


In addition Ansipos and POS can be POS multi-character targets, for example:
Ansipos (' Abs ', ' 123abs78 ') = 4
Ansipos (' Abs ', ' 123a5678 ') = 0
Pos (' Abs ', ' 123abs78 ') = 4
Pos (' Abs ', ' 123a5678 ') = 0