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8.14.15 BP compatibility: Strings

The following listing contains the interface of the Strings unit.

This is a compatibility unit to BP's `Strings' unit to handle C style `#0'-terminated strings.

The same functionality and much more is available in the Run Time System, section 8.13 Pascal declarations for GPC's Run Time System, under clearer names (starting with a `CString' prefix),

Moreover, the use of `#0'-terminated C-style strings (`PChar' or `CString') is generally not recommended in GPC, since GPC provides ways to deal with Pascal-style strings of arbitrary and dynamic size in a comfortable way, as well as automatic conversion to C-style strings in order to call external C functions.

Therefore, using this unit is not recommended in newly written programs.

 
{ BP compatible Strings unit

Copyright (C) 1999-2002 Free Software Foundation, Inc.

Author: Frank Heckenbach <frank@pascal.gnu.de>

This file is part of GNU Pascal.

GNU Pascal is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

GNU Pascal is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with GNU Pascal; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

As a special exception, if you link this file with files compiled with a GNU compiler to produce an executable, this does not cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. }

{$gnu-pascal,I-}

unit Strings;

interface

uses GPC;

function StrLen (Src: CString): SizeType; asmname '_p_strlen'; function StrEnd (Src: CString): CString; asmname '_p_strend'; function StrMove (Dest, Source: CString; Count: SizeType): CString; asmname '_p_strmove'; function StrCopy (Dest, Source: CString): CString; asmname '_p_strcpy'; function StrECopy (Dest, Source: CString): CString; asmname '_p_strecpy'; function StrLCopy (Dest, Source: CString; MaxLen: SizeType): CString; asmname '_p_strlcpy'; function StrPCopy (Dest: CString; const Source: String): CString; asmname '_p_cstringcopystring'; function StrCat (Dest, Source: CString): CString; asmname '_p_strcat'; function StrLCat (Dest, Source: CString; MaxLen: SizeType): CString; asmname '_p_strlcat'; function StrComp (s1, s2: CString): Integer; asmname '_p_strcmp'; function StrIComp (s1, s2: CString): Integer; asmname '_p_strcasecmp'; function StrLComp (s1, s2: CString; MaxLen: SizeType): Integer; asmname '_p_strlcmp'; function StrLIComp (s1, s2: CString; MaxLen: SizeType): Integer; asmname '_p_strlcasecmp'; function StrScan (Src: CString; Ch: Char): CString; asmname '_p_strscan'; function StrRScan (Src: CString; Ch: Char): CString; asmname '_p_strrscan'; function StrPos (aString, SubString: CString): CString; asmname '_p_strpos'; function StrRPos (aString, SubString: CString): CString; asmname '_p_strrpos'; function StrUpper (s: CString): CString; asmname '_p_strupper'; function StrLower (s: CString): CString; asmname '_p_strlower'; function StrPas (aString: CString): TString; asmname '_p_strpas'; function StrEmpty (s: CString): Boolean; asmname '_p_strempty'; function StrNew (Src: CString): CString; asmname '_p_strdup'; procedure StrDispose (s: CString); asmname '_p_dispose';


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