FREETMPS is cleaning up any temporary variables/values, which includes the return values of the Perl subroutine, so you have to copy your out_string in case you need it beyond FREETMPS. (Put the printf... statement immediately after out_string = POPp; and you'll see that things are working fine.)

BTW, POPp is deprecated — use POPpx instead, which also gives you the length of the string.

In reply to Re: embedding perl in c? by almut
in thread embedding perl in c? by jrs

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