commit https://github.com/vim/vim/commit/d43f0951bca162d4491d57df9277b5dbc462944f Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 27 22:30:47 2015 +0200 patch 7.4.843 Problem: Still possible to go beyond the end of a string. Solution: Check for NUL also in second string. (Dominique Pelle)

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")