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* disposestr allocstr compatible with delphi

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This commit is contained in:
peter 1999-08-24 13:14:50 +00:00
parent 98fb19f0b0
commit 2adb97a929
2 changed files with 29 additions and 26 deletions
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46
rtl/objpas/syspch.inc
View File

@ -37,8 +37,8 @@ type
function StrPas(Str: PChar): string;
begin
SetLength(result, StrLen(Str));
Move(Str^, result[1], Length(result));
SetLength(result, StrLen(Str));
Move(Str^, result[1], Length(result));
end ;
{ StrAlloc allocates a buffer of Size + 4
@ -46,20 +46,19 @@ end ;
StrDispose should be used to destroy the buffer }
function StrAlloc(Size: cardinal): PChar;
var Temp: pointer;
begin
GetMem(Temp, Size + SizeOf(cardinal));
Move(Size, Temp^, SizeOf(cardinal));
pbyte(Temp + SizeOf(cardinal))^ := 0;
result := PChar(Temp + SizeOf(cardinal));
end ;
inc(size,sizeof(cardinal));
getmem(result,size);
cardinal(pointer(result)^):=size;
inc(result,sizeof(cardinal));
end;
{ StrPCopy copies the pascal string Source to Dest and returns Dest }
function StrPCopy(Dest: PChar; Source: string): PChar;
begin
result := StrMove(Dest, PChar(Source), length(Source)+1);
result := StrMove(Dest, PChar(Source), length(Source)+1);
end ;
{ StrPLCopy copies MaxLen or less characters from the pascal string
@ -81,30 +80,31 @@ end ;
{ StrDispose clears the memory allocated with StrAlloc }
procedure StrDispose(var Str: PChar);
var Size: cardinal;
procedure StrDispose(Str: PChar);
begin
if (Str <> Nil) then begin
Str := PChar(Str - SizeOf(cardinal));
Move(Str^, Size, SizeOf(cardinal));
FreeMem(Str, Size + SizeOf(cardinal));
Str := Nil;
end ;
end ;
if (Str <> Nil) then
begin
dec(Str,sizeof(cardinal));
Freemem(str,cardinal(pointer(str)^));
end;
end;
{ StrBufSize returns the amount of memory allocated for pchar Str allocated with StrAlloc }
function StrBufSize(var Str: PChar): cardinal;
function StrBufSize(Str: PChar): cardinal;
begin
if Str <> Nil then
result := Cardinal(pointer(Str - SizeOf(cardinal))^)
else
if Str <> Nil then
result := cardinal(pointer(Str - SizeOf(cardinal))^)-sizeof(cardinal)
else
result := 0;
end ;
{
$Log$
Revision 1.5 1999-07-09 10:06:34 peter
Revision 1.6 1999-08-24 13:14:50 peter
* disposestr allocstr compatible with delphi
Revision 1.5 1999/07/09 10:06:34 peter
* merged
Revision 1.4.2.1 1999/07/09 10:05:05 peter

9
rtl/objpas/syspchh.inc
View File

@ -46,12 +46,15 @@ function StrPas(Str: PChar): string;
function StrPCopy(Dest: PChar; Source: string): PChar;
function StrPLCopy(Dest: PChar; Source: string; MaxLen: cardinal): PChar;
function StrAlloc(Size: cardinal): PChar;
function StrBufSize(var Str: PChar): cardinal;
procedure StrDispose(var Str: PChar);
function StrBufSize(Str: PChar): cardinal;
procedure StrDispose(Str: PChar);
{
$Log$
Revision 1.3 1999-02-25 07:39:58 michael
Revision 1.4 1999-08-24 13:14:51 peter
* disposestr allocstr compatible with delphi
Revision 1.3 1999/02/25 07:39:58 michael
* Joined strings and sysutils
Revision 1.2 1998/09/16 08:28:41 michael