patch 8.0.0493: crash with cd command with very long argument commit https://github.com/vim/vim/commit/15618fa643867cf0d9c31f327022a22dff78a0cf Author: Bram Moolenaar <Bram@vim.org> Date: Sun Mar 19 21:37:13 2017 +0100 patch 8.0.0493: crash with cd command with very long argument Problem: Crash with cd command with very long argument. Solution: Check for running out of space. (Dominique pending, closes https://github.com/vim/vim/issues/1576)

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}\")