rgw_rest_s3.cc: prefer !empty() over size() for emptiness check

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

diff --git a/src/rgw/rgw_rest_s3.cc b/src/rgw/rgw_rest_s3.cc
index ff3ca1e7ad92ebf776156a01d500e7bd77a639a4..9479601e43584280de5618dcdfa8cf63b56c164a 100644 (file)
--- a/src/rgw/rgw_rest_s3.cc
+++ b/src/rgw/rgw_rest_s3.cc
@@ -286,7 +286,7 @@ void RGWListBucket_ObjStore_S3::send_versioned_response()
       dump_owner(s, iter->owner, iter->owner_display_name);
       s->formatter->close_section();
     }
-    if (common_prefixes.size() > 0) {
+    if (!common_prefixes.empty()) {
       map<string, bool>::iterator pref_iter;
       for (pref_iter = common_prefixes.begin(); pref_iter != common_prefixes.end(); ++pref_iter) {
         s->formatter->open_array_section("CommonPrefixes");