On 04/11/2011 12:32 PM, John Lee wrote:
Need to read the last 4 lines (txt) of a very large log file 100M
bytes, 100k lines or more lots of times - of course I can read
through the file in the normal way but this is rather slow. Is there a
way to 'read lines from the end'? I note that unix tai
So the idea is to open file eg as file of array [1:65536] of char or
something similar, seek & read to end of file, then go through the last
array converting to strings by finding crlfs correct? Is this the simplest
way? If not any outline code?
John
On , José Mejuto wrote:
Hello FPC-Pas
2011/4/12 Paul Ishenin :
> 12.04.2011 4:22, cobines wrote:
>>
>> Hello.
>>
>> Following program:
>>
>> program a;
>> {$mode delphi}
>> type
>> generic TGen = class end;
>> TSpc = specialize TGen;
>> begin
>> end.
>>
>> compiles with FPC 2.4.2, but not with 2.5.1 rev. 17306:
>>
>> a.pas(4,11) F
Since FPC in Delphi mode supports Delphi style generics syntax, FPC's own
generics syntax was removed from this mode. You can still use it from ObjFPC
mode.
--
View this message in context:
http://free-pascal-general.1045716.n5.nabble.com/generic-specialize-keywords-in-mode-delphi-in-FPC-trunk-tp
12.04.2011 4:22, cobines wrote:
Hello.
Following program:
program a;
{$mode delphi}
type
generic TGen = class end;
TSpc = specialize TGen;
begin
end.
compiles with FPC 2.4.2, but not with 2.5.1 rev. 17306:
a.pas(4,11) Fatal: Syntax error, "=" expected but "identifier TGEN" found
a.pas(
Hello.
Following program:
program a;
{$mode delphi}
type
generic TGen = class end;
TSpc = specialize TGen;
begin
end.
compiles with FPC 2.4.2, but not with 2.5.1 rev. 17306:
a.pas(4,11) Fatal: Syntax error, "=" expected but "identifier TGEN" found
a.pas(5,21) Error: Identifier not found "sp
Hello FPC-Pascal,
Monday, April 11, 2011, 7:55:01 PM, you wrote:
>> The idea is easy, instead reading forward, you read backwards in
>> blocks of, say, 64 Kb and count lines back. If not enougth lines you
>> insert another 64 Kb before and so on. Average line is usually less
>> than 100 bytes, so
On Mon, 11 Apr 2011 19:45:10 +0200
José Mejuto wrote:
> Hello FPC-Pascal,
>
> Monday, April 11, 2011, 6:32:20 PM, you wrote:
>
> JL> Need to read the last 4 lines (txt) of a very large log file 100M bytes,
> JL> 100k lines or more lots of times - of course I can read through the file
> in
> J
Hello FPC-Pascal,
Monday, April 11, 2011, 6:32:20 PM, you wrote:
JL> Need to read the last 4 lines (txt) of a very large log file 100M bytes,
JL> 100k lines or more lots of times - of course I can read through the file in
JL> the normal way but this is rather slow. Is there a way to 'read lines
Need to read the last 4 lines (txt) of a very large log file 100M bytes,
100k lines or more lots of times - of course I can read through the file in
the normal way but this is rather slow. Is there a way to 'read lines from
the end'? I note that unix tail or its port to windows does this very fast
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