patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum commit https://github.com/vim/vim/commit/07ccf7ce7fb948fd4d080b817e9fbaea9e721dab Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 12 17:25:36 2018 +0200 patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum Problem: vim_str2nr() does not handle numbers close to the maximum. Solution: Check for overflow more precisely. (Ken Takata, closes https://github.com/vim/vim/issues/2746)

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}\")