Add default constructor.

1 files changed, 4 insertions, 3 deletions

diff --git a/staging_vespalib/src/tests/metrics/mock_tick.h b/staging_vespalib/src/tests/metrics/mock_tick.h
index e8f621508ae..d2e985b5ba3 100644
--- a/staging_vespalib/src/tests/metrics/mock_tick.h
+++ b/staging_vespalib/src/tests/metrics/mock_tick.h
@@ -15,8 +15,9 @@ class MockTick : public Tick {
 private:
     using Guard = std::unique_lock<std::mutex>;
     struct Value {
-        TimeStamp value{0.0};
-        bool    valid{false};
+        Value() noexcept : value(0.0), valid(false) {}
+        TimeStamp value;
+        bool    valid;
     };
 
     TimeStamp               _first_value;
@@ -55,7 +56,7 @@ private:
     }
 
 public:
-    explicit MockTick(TimeStamp first_value)
+    explicit MockTick(TimeStamp first_value) noexcept
         : _first_value(first_value), _lock(), _cond(), _alive(true), _prev(), _next() {}
     TimeStamp first() override { return _first_value; }
     TimeStamp next(TimeStamp prev) override {