I am looking foward into the development of a potentially large project using FPC, but this project will require the development and dynamic linking of shared libraries, when looking the site docs, I saw it was not recommended to make shared libraries with FPC, although the Programmer´s Manual treat the subject as if it was quite straightfoward... so I got pretty confused.... any thoughts?
I will need to both create the libraries and link to them at runtime without knowing them at design time, like the win32 LoadLibrary(filename) function, but I would need a multiplatform solution... Any ideas would be welcome. Renato Borges A. Prado ----- Original Message ----- From: "Matt Emson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, August 29, 2003 12:48 PM Subject: Re: [fpc-pascal]More strangeness... > > In the development branch THandle is a Cardinal. In the stable 1.0.x > > branch we left it an Longint. In the past there were some issues in the > > with Cardinal. At that moment it was decided to leave thandle at longint. > > And it has been already a longint for 5 years. When it was really a > > problem then it would have been noticed much earlier. > > Peter, longint is simply wrong. whist is may work in most circumstances, if > you are on a system with a lot of handles being allocated, you will get to > the realms on 32bit unsigned values. As the normal test for a handle > allocation is : > > h := AllocateSomeHandle; > if (h > 0) then Success > else Recover; > > you are simply asking for trouble. A negative handle value is not > acceptable. I'm guessing the problems have been got around by the shear luck > of a silent cast when passing an longint to a function expecting a longword. > However it's possible that L D Blake has stumbled accross somewhere where > this is not possible. > > It's not actually a Cardinal, it's a DWORD that is the normal Win32 type. > DWORD is mapped to LongWord in Delphi and therefore Cardinal. > > Matt > > > _______________________________________________ > fpc-pascal maillist - [EMAIL PROTECTED] > http://lists.freepascal.org/mailman/listinfo/fpc-pascal _______________________________________________ fpc-pascal maillist - [EMAIL PROTECTED] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
