commit 16e9b85113e0b354ece1cb4f5fcc7866850f3685
author Bram Moolenaar <Bram@vim.org> Sun May 19 19:59:35 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Sun May 19 19:59:35 2019 +0200
tree 2abe4e3cffe8b0281f0690e5570a47eb2198a826
parent f5842c5a533346c4ff41ff666e465c85f1de35d5

patch 8.1.1355: obvious mistakes are accepted as valid expressions

Problem:    Obvious mistakes are accepted as valid expressions.
Solution:   Be more strict about parsing numbers. (Yasuhiro Matsumoto,
            closes #3981)

src/evalfunc.c

diff --git a/src/evalfunc.c b/src/evalfunc.c
index 4c02e15..5631795 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -13199,7 +13199,8 @@
 	case 16: what = STR2NR_HEX + STR2NR_FORCE; break;
 	default: what = 0;
     }
-    vim_str2nr(p, NULL, NULL, what, &n, NULL, 0);
+    vim_str2nr(p, NULL, NULL, what, &n, NULL, 0, FALSE);
+    // Text after the number is silently ignored.
     if (isneg)
 	rettv->vval.v_number = -n;
     else