in reply to Perl_API get_sv and SvIV_set

you also have to tell perl that the integer on the IV slot is good with SvIOK_on(): 
SV* super_i;
super_i = get_sv("main::buu_test_i", TRUE);
SvIV_set(super_i, 42);
SvIOK_on(super_i);

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Re^2: Perl_API get_sv and SvIV_set
by BUU (Prior) on Apr 17, 2006 at 00:58 UTC
    Ah, you are completely correct and it works happily. However I wonder if you could answer another question. I am trying to find an op that gets called at the 'end' of every loop, just before the next iteration begins. Is there any such beast? The B module seems to imply that pp_redo is called, but in my tests it doesn't seem to be. Any ideas?
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      It sounds like you are looking for the opcode equivalent of the 'continue' statement. From a casual look at the differences in the output of these two commands: 

      perl -MO=Concise -e 'while ($z == 1) { $x=2;} continue {$y=3;}'
perl -MO=Concise -e 'while ($z == 1) { $x=2;}'

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      I would guess that the opcode is 'pp_next'.

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[d/l]
        Well, I modified pp_next by adding a "DIE" call in the middle of it but no loop I tried could trigger it. Doesn't seem to be the one I want.
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