common: Make use of [[nodiscard]] where applicable

Now that clang-format makes [[nodiscard]] attributes format sensibly, we
can apply them to several functions within the common library to allow
the compiler to complain about any misuses of the functions.

1 files changed, 8 insertions, 8 deletions

diff --git a/src/common/timer.h b/src/common/timer.h
index 27b521baa..8894a143d 100644
--- a/src/common/timer.h
+++ b/src/common/timer.h
@@ -19,18 +19,18 @@ public:
 
     // The time difference is always returned in milliseconds, regardless of alternative internal
     // representation
-    std::chrono::milliseconds GetTimeDifference();
+    [[nodiscard]] std::chrono::milliseconds GetTimeDifference();
     void AddTimeDifference();
 
-    static std::chrono::seconds GetTimeSinceJan1970();
-    static std::chrono::seconds GetLocalTimeSinceJan1970();
-    static double GetDoubleTime();
+    [[nodiscard]] static std::chrono::seconds GetTimeSinceJan1970();
+    [[nodiscard]] static std::chrono::seconds GetLocalTimeSinceJan1970();
+    [[nodiscard]] static double GetDoubleTime();
 
-    static std::string GetTimeFormatted();
-    std::string GetTimeElapsedFormatted() const;
-    std::chrono::milliseconds GetTimeElapsed();
+    [[nodiscard]] static std::string GetTimeFormatted();
+    [[nodiscard]] std::string GetTimeElapsedFormatted() const;
+    [[nodiscard]] std::chrono::milliseconds GetTimeElapsed();
 
-    static std::chrono::milliseconds GetTimeMs();
+    [[nodiscard]] static std::chrono::milliseconds GetTimeMs();
 
 private:
     std::chrono::milliseconds m_LastTime;