PHP DM Gate v0.9 » TIP: KOL and C .obj linking <span class="vd">[Delphi, C++ Builder]</span>

Thaddy © (08.01.12 18:05) [0]

there is a not very well documented crtl.dcu in Delphi since version 6.
This is the complete C runtime library and can be used for easy linking.
It uses native Delphi memory management.
Example:

program Project4;
{$APPTYPE CONSOLE}
uses
crtl;
begin
writeln('my name is ', crtl._strlen(PAnsichar('Thaddy')), ' characters long');
readln;
end.

This will work from D2005 to D XE2 (Ansi mode)

For D6 and D7 you need a little trick, because they didn't clean up the uses clause for crtl.dcu.
There is a dependency on midaslib.dcu! and it gives an internal error.
Well, not really.

You can add this little unit:

unit midaslib;
interface
implementation
end.

Now you can also use crtl with D6 and D7 (although a little big)
Like:

program Project4;
// only necessary for Delphi 6 and Delphi 7
{$APPTYPE CONSOLE}
uses
crt, midaslibl;
begin
writeln('my name is ', crtl._strlen(PAnsichar('Thaddy')), ' characters long');
readln;
end.

From D2005 and higher it is now very easy to link small C obj files (OMF format)
Maybe this tip is not only for KOL.

<Цитата>
Thaddy © (08.01.12 18:12) [1]

Typo.

program Project4;
// only necessary for Delphi 6 and Delphi 7
{$APPTYPE CONSOLE}
uses
crt, midaslib;
begin
writeln('my name is ', crtl._strlen(PAnsichar('Thaddy')), ' characters long');
readln;
end.

I recommend using BC5.5 freeware.
f.e. with sqlite 2 you can create a < 100K sql database with KOL <smile>

<Цитата>
Jon © (08.01.12 21:44) [2]

Typo II:

program Project4;
// only necessary for Delphi 6 and Delphi 7
{$APPTYPE CONSOLE}
uses
crtl, midaslib;
begin
writeln('my name is ', crtl._strlen(PAnsichar('Thaddy')), ' characters long');
readln;
end.

Thanks for the info Thaddy - I see that you also have it on your blog:
http://www.thaddy.com/drupal/?q=node/10

Do you know if the same is possible with Free Pascal?

<Цитата>
Thaddy © (08.01.12 21:59) [3]

Yes,

Freepascal could link C (not C++) OMF obj and also (but not mixed) COFF obj for years.
The current release is also able to link C++ libs.
In the case of FPC not crtl but libc.

Tnx for correcting typo 2!

<Цитата>