Unit 'sysutils' Package
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AnsiStrIComp

Compare two null-terminated strings. Case insensitive.

Declaration

Source position: sysstrh.inc line 98

function AnsiStrIComp(

  S1: PAnsiChar;

  S2: PAnsiChar

):Integer;

Description

AnsiStrIComp 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-insensitive.

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

Errors

None.

See also

AnsiCompareText

  

Compare 2 ansistrings, case insensitive, using locale settings.

AnsiCompareStr

  

Compare 2 ansistrings, case sensitive, using locale settings.

Example

Program Example55;

{ This program demonstrates the AnsiStrIComp function }

Uses sysutils;

Procedure TestIt (S1,S2 : Pchar);

Var R : Longint;

begin
  R:=AnsiStrIComp(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.

Documentation generated on: Oct 02 2024