commit https://github.com/vim/vim/commit/76ae22fef3cb224ca7fbf97517f881e825d4d0c2 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jun 13 20:00:29 2016 +0200 patch 7.4.1928 Problem: Overwriting pointer argument. Solution: Assign to what it points to. (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}\")