I was hoping to avoid copying i.e. re-use allocated string data. Thanks to your tip, I think a working solution can be:

void _replace( Imager img, SV* str ) {
    sv_force_normal( str );
    unsigned char* ptr = SvPV_nolen( str );
    myfree( img-> idata );
    img-> idata = ptr;
    SvPV_set( str, savepv( "" ) );
}

[download]

It works, though I'm still not sure, is it really OK? Or too ugly? Or scandalously incorrect and will bite me some time later?

In reply to Re^2: Trying dirty trick with Imager and Inline C, but having difficulties. Can you help? by vr
in thread Trying dirty trick with Imager and Inline C, but having difficulties. Can you help? by vr

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