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17c623dc25
because if f is not yet initialized, the mode is invalid and can
contain another value even though the file is closed
+ check if a file is open in writeln_end (caused crash if used on
not opened files)
114 lines
2.9 KiB
PHP
114 lines
2.9 KiB
PHP
{
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$Id$
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This file is part of the Free Pascal Run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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See the File COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{****************************************************************************
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subroutines for typed file handling
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****************************************************************************}
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Procedure assign(var f:TypedFile;const Name:string);
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{
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Assign Name to file f so it can be used with the file routines
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}
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Begin
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FillChar(f,SizeOF(FileRec),0);
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FileRec(f).Handle:=UnusedHandle;
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FileRec(f).mode:=fmClosed;
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Move(Name[1],FileRec(f).Name,Length(Name));
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End;
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Procedure assign(var f:TypedFile;p:pchar);
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{
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Assign Name to file f so it can be used with the file routines
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}
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begin
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Assign(f,StrPas(p));
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end;
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Procedure assign(var f:TypedFile;c:char);
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{
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Assign Name to file f so it can be used with the file routines
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}
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begin
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Assign(f,string(c));
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end;
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Procedure Int_Typed_Reset(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_RESET_TYPED'];
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Begin
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If InOutRes <> 0 then
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exit;
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Reset(UnTypedFile(f),Size);
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End;
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Procedure Int_Typed_Rewrite(var f : TypedFile;Size : Longint);[Public,IOCheck, Alias:'FPC_REWRITE_TYPED'];
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Begin
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If InOutRes <> 0 then
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exit;
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Rewrite(UnTypedFile(f),Size);
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End;
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Procedure Int_Typed_Write(TypeSize : Longint;var f : TypedFile;var Buf);[IOCheck, Public, Alias :'FPC_TYPED_WRITE'];
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Begin
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If InOutRes <> 0 then
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exit;
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case fileRec(f).mode of
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fmOutPut,fmInOut:
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Do_Write(FileRec(f).Handle,Longint(@Buf),TypeSize);
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fmInput: inOutRes := 105;
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else inOutRes := 103;
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end;
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End;
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Procedure Int_Typed_Read(TypeSize : Longint;var f : TypedFile;var Buf);[IOCheck, Public, Alias :'FPC_TYPED_READ'];
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var
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Result : Longint;
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Begin
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If InOutRes <> 0 then
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exit;
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case FileRec(f).mode of
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fmInput,fmInOut:
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begin
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Result:=Do_Read(FileRec(f).Handle,Longint(@Buf),TypeSize);
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If Result<TypeSize Then
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InOutRes:=100
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end;
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fmOutPut: inOutRes := 104
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else inOutRes := 103;
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end;
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End;
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{
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$Log$
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Revision 1.10 2000-03-24 10:26:19 jonas
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* changed a lot of "if fm.mode = fmClosed then" to case statements,
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because if f is not yet initialized, the mode is invalid and can
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contain another value even though the file is closed
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+ check if a file is open in writeln_end (caused crash if used on
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not opened files)
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Revision 1.9 2000/02/09 16:59:31 peter
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* truncated log
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Revision 1.8 2000/01/07 16:41:37 daniel
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* copyright 2000
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Revision 1.7 2000/01/07 16:32:25 daniel
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* copyright 2000 added
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}
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