source: swig/perl/language.i @ ade843e

%typemap(argout) bool &success {
    --argvi;
    SV *array = $result;

    $result = sv_newmortal();
    sv_setiv($result, *$1);
    ++argvi;

    $result = array;
    ++argvi;
}

%typemap(in,numinputs=0) bool &success(bool temp) {
    $1 = &temp;
}

// abac_chunk_t is a string
%typemap(in) abac_chunk_t {
    STRLEN len;
    $1.ptr = (unsigned char *)SvPV($input, len);
    $1.len = len;
}

%typemap(out) abac_chunk_t {
    $result = newSVpvn(
        (const char *)$1.ptr,
        $1.len
    );
    ++argvi;
}