Hi,

        I have made simple trials using the StandardLib.
I get this error :
RBParser does not understand externalFunctionDeclaration.
I might be missing something …

Annick

Le 9 juil. 2014 à 17:20, Esteban Lorenzano <esteba...@gmail.com> a écrit :

> 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> 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'>
>>      ^self externalCallFailed   
>> 
>> This works fine too:
>> 
>> <apicall: int 'gst_init_check' (int* char* int*) module: 
>> '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>:
>> 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'>
>> 
>> ^self externalCallFailed
>> 
>> 
>> ====
>> 
>> but when accepting it I get a syntax error « matching number of arguments »
>> Annick Fron
>> 
> 

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