commit 50c4e9e08fb0981892e33afb9fe3751aa6df1fa4
author Bram Moolenaar <Bram@vim.org> Mon Oct 05 20:38:06 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Mon Oct 05 20:38:06 2020 +0200
tree a56f543892b48098448b127fcadb64abf4662c87
parent afe8cf617013fd8c3f0189f1e1fa7a2a6a8f7511

patch 8.2.1804: resolve('/') returns an empty string

Problem:    resolve('/') returns an empty string.
Solution:   Don't remove single slash. (closes #7074)

src/filepath.c

diff --git a/src/filepath.c b/src/filepath.c
index e2131a4..b692e22 100644
--- a/src/filepath.c
+++ b/src/filepath.c
@@ -1889,7 +1889,7 @@
 	    is_relative_to_current = TRUE;
 
 	len = STRLEN(p);
-	if (len > 0 && after_pathsep(p, p + len))
+	if (len > 1 && after_pathsep(p, p + len))
 	{
 	    has_trailing_pathsep = TRUE;
 	    p[len - 1] = NUL; // the trailing slash breaks readlink()