[Swig-devel] [ swig-Bugs-1585688 ] Uncompilable dispatch method with %typemap(in)

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Bugs item #1585688, was opened at 2006-10-27 11:11
Message generated for change (Comment added) made by olly
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Category: perl
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Petr Novotny (petr_novotny)
>Assigned to: Olly Betts (olly)
Summary: Uncompilable dispatch method with %typemap(in)

Initial Comment:
The attached bug.i file, swigged with -c++ -perl5, 
creates an uncompilable code.

The %typemap(in) has a subtle typo - 
there's "numinput=0" instead of "numinputs=0". The 
generated dispatch function for the overload cases 
contains
         int res = SWIG_ConvertPtr(argv[3], &vptr, 
SWIGTYPE_p_p_char, 0);

It accesses ST(0), ST(1) and ST(2) correctly. Then it 
tries to check the fourth parameter (why oh why?) and 
gets somewhat confused about it - and it uses non-
existent variable "argv"...

I expect Swig either complain about syntactically 
incorrect typemap specification, or to generate a 
code that compiles.

Tested with swig 1.3.29.

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>Comment By: Olly Betts (olly)
Date: 2006-10-28 00:51

Message:
Logged In: YES 
user_id=14972

Thanks for your bug report.

I believe I recently fixed the "argv" problem in CVS HEAD -
the generated code I get with your example doesn't reference
argv with CVS HEAD.

The reason that 4 parameters appear to be checked is that
ST(0) is actually the "this" pointer to the object itself -
if you look carefully at the code, it is expected to be a
"pointer to B".


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