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AnsiStrComp

Compare two null-terminated strings. Case sensitive.

Declaration

Source position: sysstrh.inc line 96

  function AnsiStrComp(S1: PChar; S2: PChar) : Integer;

Description

AnsiStrComp compares 2 PChar strings, and returns the following result:

<0
if S1<S2.
0
if S1=S2.
>0
if S1>S2.

The comparison of the two strings is case-sensitive.

Remark

A widestring manager must be installed in order for this function to work correctly with various character sets. !!!

Errors

None.

See also

Name Description
AnsiCompareStr Compare 2 ansistrings, case sensitive, ignoring accents characters.
AnsiCompareText Compare 2 ansistrings, case insensitive, ignoring accents characters.

Example

Program Example54;
{ This program demonstrates the AnsiStrComp function }
Uses sysutils;
Procedure TestIt (S1,S2 : Pchar);
Var R : Longint;
begin
  R:=AnsiStrComp(S1,S2);
  Write ('"',S1,'" is ');
  If R<0 then
    write ('less than ')
  else If R=0 then
    Write ('equal to ')
  else
    Write ('larger than ');
  Writeln ('"',S2,'"');
end;
Begin
  Testit('One string','One smaller string');
  Testit('One string','one string');
  Testit('One string','One string');
  Testit('One string','One tall string');
End.