test_keyvaluedb_iterators.cc: use empty() to check for emptiness

Use !empty() instead of 'size() > 0' to check for emptiness for
performance reasons.

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

diff --git a/src/test/ObjectMap/test_keyvaluedb_iterators.cc b/src/test/ObjectMap/test_keyvaluedb_iterators.cc
index e5c9089916ca78b271f42ecde47d1aae43706b17..aa63e1a2de448f67dc7a9d359a8108471fed624a 100644 (file)
--- a/src/test/ObjectMap/test_keyvaluedb_iterators.cc
+++ b/src/test/ObjectMap/test_keyvaluedb_iterators.cc
@@ -147,7 +147,7 @@ public:
   void validate_prefix(KeyValueDB::WholeSpaceIterator iter,
       string &prefix, deque<string> &keys) {
 
-    while (keys.size() > 0) {
+    while (!keys.empty()) {
       ASSERT_TRUE(iter->valid());
       string expected_key = keys.front();
       keys.pop_front();
@@ -170,7 +170,7 @@ public:
   void validate_prefix_backwards(KeyValueDB::WholeSpaceIterator iter,
       string &prefix, deque<string> &keys) {
 
-    while (keys.size() > 0) {
+    while (!keys.empty()) {
       ASSERT_TRUE(iter->valid());
       string expected_key = keys.front();
       keys.pop_front();