[fpc-pascal] SIGSEGV when using varargs calling

Jonas Maebe jonas.maebe at elis.ugent.be
Tue Jan 26 09:49:56 CET 2016


leledumbo wrote:
>> >  AFAIR it was supported until certain FPC version
>
> Found it:
> http://wiki.lazarus.freepascal.org/User_Changes_2.6.0#Array_of_const_parameters_and_cdecl_routines

As that entry notes, it was not supported: "There is however no way in 
(Free) Pascal to access these arguments on the callee side". This 
includes the case where you try to hack around this by declaring fake 
parameters, such as what Silvio was doing.

The compiler didn't throw an error, but that's similar to how it didn't 
throw an error in case of e.g. 
http://wiki.freepascal.org/User_Changes_3.0#Classes_implementing_forward-declared_interfaces


Jonas


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