* sprintf.c (rb_f_sprintf): copy sign bits only if value is

  negative.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@3591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 1 deletions

diff --git a/sprintf.c b/sprintf.c
index 69f9fa3ff..caea4c587 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -556,7 +556,12 @@ rb_f_sprintf(argc, argv)
 		    }
 		}
 		else {
-		    char c = sign_bits(base, p);
+		    char c;
+
+		    if (bignum && !RBIGNUM(val)->sign)
+			c = sign_bits(base, p);
+		    else
+			c = '0';
 		    while (len < prec--) {
 			buf[blen++] = c;
 		    }