On 10 Jul 2014, at 02:32, Andres Valloud <avall...@smalltalk.comcastbiz.net> wrote:
> On 64 bit Windows a long is 32 bits and pointers are 64 bits, so that type of > replacement is not going to work in the long run… Of course, but let’s take care about that problem when actually become a problem :) Hopefully, for when we finally have a 64bits with FFI, we will have a proper ** interpretation, but the workaround is the fastest solution you can have for now. Esteban > > On 7/9/14 8:20 , Esteban Lorenzano wrote: >> yes, FFI does not handle ** arguments. >> I always replace it by ulong instead (it is the same, after all) >> >> Esteban >> >> On 09 Jul 2014, at 17:17, Clément Bera <bera.clem...@gmail.com >> <mailto:bera.clem...@gmail.com>> wrote: >> >>> Hello, >>> >>> This bug happen both with the old and new compiler. >>> >>> The error tells you that the number of arguments of your smalltalk >>> method does not match the number of argument of the C method you want >>> to call (but it seemsthe number of arguments is correct). >>> >>> This works fine: >>> >>> <apicall: int 'gst_init_check' (int char* int) module: >>> 'libgstreamer1.0-0.so <http://libgstreamer1.0-0.so/>'> >>> ^self externalCallFailed >>> >>> This works fine too: >>> >>> <apicall: int 'gst_init_check' (int* char* int*) module: >>> 'libgstreamer1.0-0.so <http://libgstreamer1.0-0.so/>'> >>> ^self externalCallFailed >>> >>> So it seems the bug comes from the parser missparsing ** . I am not >>> familiar with C enough to help, I don't know what means ** (Is it a >>> pointer pointing to a pointer pointing to the actual data ?). >>> >>> Perhaps someone who knows how to use FFI can give a better answer. >>> >>> Esteban ? Guille ? >>> >>> >>> 2014-07-09 16:39 GMT+02:00 Annick Fron <i...@afceurope.com >>> <mailto:i...@afceurope.com>>: >>> >>> >>> Hi, >>> >>> >>> >>> I am trying to use FFI on linux with pharo 3 using version >>> 31 of FFI. >>> >>> I have written the following method : >>> >>> >>> <apicall: int 'gst_init_check' (int* char** int*) module: >>> 'libgstreamer1.0-0.so <http://libgstreamer1.0-0.so/>'> >>> >>> ^self externalCallFailed >>> >>> >>> ==== >>> >>> but when accepting it I get a syntax error « matching number of >>> arguments » >>> Annick Fron >>> >>> >> >
