From ee803577187b05d54026b48a2ae83f4ba6f8202a Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Wed, 30 Sep 2026 16:52:58 +0200
Subject: kstd: ring_buffer: rename head and tail

---
 libs/kstd/kstd/ring_buffer.hpp | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'libs/kstd')

diff --git a/libs/kstd/kstd/ring_buffer.hpp b/libs/kstd/kstd/ring_buffer.hpp
index 151ab994..6bdfce92 100644
--- a/libs/kstd/kstd/ring_buffer.hpp
+++ b/libs/kstd/kstd/ring_buffer.hpp
@@ -64,7 +64,7 @@ namespace kstd
     //! @return @p true iff. this ring buffer is empty, @p false otherwise.
     [[nodiscard]] constexpr auto empty() const noexcept -> bool
     {
-      return m_head == m_tail;
+      return m_write_index == m_read_index;
     }
 
     //! Get the size of this ring buffer.
@@ -72,12 +72,12 @@ namespace kstd
     //! @return The number of elements currently stored in this ring buffer.
     [[nodiscard]] constexpr auto size() const noexcept -> size_type
     {
-      if (m_head >= m_tail)
+      if (m_write_index >= m_read_index)
       {
-        return m_head - m_tail;
+        return m_write_index - m_read_index;
       }
 
-      return capacity() - m_tail + m_head;
+      return capacity() - (m_read_index - m_write_index);
     }
 
     //! Get the maximum number of elements this ring buffer can hold.
@@ -97,7 +97,7 @@ namespace kstd
     constexpr auto element_at_index(size_type index) noexcept -> pointer
     {
       auto base_pointer = reinterpret_cast<pointer>(m_storage.data());
-      auto storage_index = (m_tail + index) % capacity();
+      auto storage_index = (m_read_index + index) % capacity();
       return base_pointer + storage_index;
     }
 
@@ -116,10 +116,10 @@ namespace kstd
 
     //! The underlying storage for the elements of this ring buffer.
     alignas(ValueType) std::array<std::byte, sizeof(value_type) * Capacity> m_storage{};
-    //! The index of the element that was most recently added to this ring buffer.
-    size_type m_head{};
-    //! The index of the element that was least recently added to this ring buffer.
-    size_type m_tail{};
+    //! The index of the next element to be written.
+    size_type m_write_index{};
+    //! The index of the first element to be read.
+    size_type m_read_index{};
   };
 
 }  // namespace kstd
-- 
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