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AnsiStrLIComp function

In unit sysutils

Compares a given number of characters of a string, case insensitive.

Declaration

pascal
function AnsiStrLIComp(S1: PAnsiChar; S2: PAnsiChar; MaxLen: SizeUInt)
: Integer

Description

AnsiStrLIComp compares the first Maxlen characters of 2 PChar strings, S1 and S2, 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.

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

Errors

None.

See also

Example: ex57

pascal
Program Example57;

{ This program demonstrates the AnsiStrLIComp function }

Uses sysutils;

Procedure TestIt (S1,S2 : Pchar; L : longint);

Var R : Longint;

begin
  R:=AnsiStrLIComp(S1,S2,L);
  Write ('First ',L,' characters of "',S1,'" are ');
  If R<0 then
    write ('less than ')
  else If R=0 then
    Write ('equal to ')
  else
    Write ('larger than ');
  Writeln ('those of "',S2,'"');
end;

Begin
  Testit('One string','One smaller string',255);
  Testit('ONE STRING','one String',4);
  Testit('One string','1 STRING',0);
  Testit('One STRING','one string.',9);
End.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.