Hi Rob, Thanks for your help! I want to send a reference to array (test) from perl : 
 
my @test;
my $reftest = \@test;
add_nir(1,4,\$reftest);

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and fill that array inside a cpp funcion (add_nir(..)). I followed your previous reply and I am using the perl guts : 
 int add_nir(int x, int y, AV** perlList )
   {
    *perlList = newAV();
    SV* perlItem=newSViv(2);
    av_push(*perlList, perlItem);
...

}

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I am using second layer references (pointer to pointer) because first level reference (see the difference in <AV* perlList> at the function declarations ): 
 int add_nir(int x, int y, AV* perlList )

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didn't work. (after I filled the array in add_nir and left the function to it's caller, the array was empty - does the function 
newAV()

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allocates on the stack or the heap?) As i said the first level reference compiled but the array was empty on returning to the perl :first redirection level 
 my @test;
  add_nir(1,4,\@test);

   int add_nir(int x, int y, AV* perlList )
{
 perlList = newAV();
      SV* perlItem=newSViv(2);
        av_push(perlList, perlItem);
...}

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and the second level redirection couldn't be used : when running a test using my module I got the following error: 
Can't locate auto/PM_wed/add_nir.al in @INC .....

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What should I do ? Thanks, Nir

In reply to Re^6: Inline CPP by nirf1
in thread Inline CPP by nirf1

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