patch 8.0.0852: MS-Windows: possible crash when giving a message on startup commit https://github.com/vim/vim/commit/1b66c00aeca87913e75012c59c4e969316e2626d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 3 18:55:00 2017 +0200 patch 8.0.0852: MS-Windows: possible crash when giving a message on startup Problem: MS-Windows: possible crash when giving a message on startup. Solution: Initialize length. (Yasuhiro Matsumoto, closes https://github.com/vim/vim/issues/1931)

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}\")