* marshal.c (w_float): must distinguish -0.0 from 0.0.

* gc.c (gc_mark_all): tweak mark order for little bit better scan.

* gc.c (rb_gc_mark): ditto.

* gc.c (rb_gc): ditto.

* enum.c (sort_by_i): slight performance boost.

* gc.c (gc_mark_rest): should call gc_mark_children(), not gc_mark().

* gc.c (rb_gc_mark): may cause infinite looop.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1861 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/marshal.c b/marshal.c
index 8448f990e2..93005e9425 100644
--- a/marshal.c
+++ b/marshal.c
@@ -194,6 +194,10 @@ w_float(d, arg)
     else if (isnan(d)) {
 	strcpy(buf, "nan");
     }
+    else if (d == 0.0) {
+	if (1.0/d < 0) strcpy(buf, "-0");
+	else           strcpy(buf, "0");
+    }
     else {
 	/* xxx: should not use system's sprintf(3) */
 	sprintf(buf, "%.16g", d);