Fix cicular_q::size()

2025-09-29 01:29:35 +08:00 · 2019-11-09 09:30:27 +01:00
parent 6f0cb6365e
commit bad7284465
1 changed files with 8 additions and 1 deletions
--- a/include/spdlog/details/circular_q.h
+++ b/include/spdlog/details/circular_q.h
@@ -75,7 +75,14 @@ public:
    // Return number of elements actually stored
    size_t size() const
    {
-        return (tail_ - head_) % max_items_;
+        if (tail_ > head_)
+        {
+           return (tail_ - head_) % max_items;
+        }
+        else
+        {
+            return max_items - (head_ - tail_ ) % max_items;
+        }
    }

    // Return const reference to item by index.