commit 0d13cce3453b2274c93c5015faa1993baaebace9
author Bram Moolenaar <Bram@vim.org> Sat Feb 23 14:23:03 2019 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Feb 23 14:23:03 2019 +0100
tree 5cf62aee4d8867db3bbba63795c3829aae1055f9
parent e4963c543ddcfc4845fa0d42893b6a4e1aa27c47

patch 8.1.0977: blob not tested with Ruby

Problem:    Blob not tested with Ruby.
Solution:   Add more test coverage.  fixes a crash. (Dominique Pelle,
            closes #4036)

src/if_ruby.c

diff --git a/src/if_ruby.c b/src/if_ruby.c
index d3ed781..543ee8a 100644
--- a/src/if_ruby.c
+++ b/src/if_ruby.c
@@ -1267,7 +1267,7 @@
     int	i;
     for (i = 0; i < RSTRING_LEN(str); i++)
     {
-	sprintf(buf, "%02X", RSTRING_PTR(str)[i]);
+	sprintf(buf, "%02X", (unsigned char)(RSTRING_PTR(str)[i]));
 	rb_str_concat(result, rb_str_new2(buf));
     }
     return result;