Fix doxygen warnings unveiled by newer version

CONTRIBUTING.md

@@ -12,9 +12,9 @@ into three categories:
     - Post about your intended feature, and we shall discuss the design and
     implementation.
     - Once we agree that the plan looks good, go ahead and implement it, using
-    the [code contributions](#code-contributions) guide below.
+    the [code contributions](https://github.com/NVIDIA/cuCollections/blob/master/CONTRIBUTING.md#code-contributions) guide below.
 3. You want to implement a feature or bug-fix for an outstanding issue
-    - Follow the [code contributions](#code-contributions) guide below.
+    - Follow the [code contributions](https://github.com/NVIDIA/cuCollections/blob/master/CONTRIBUTING.md#code-contributions) guide below.
     - If you need more context on a particular issue, please ask and we shall
     provide.
 

doxygen/Doxyfile

@@ -2149,15 +2149,6 @@ EXTERNAL_PAGES         = YES
 # Configuration options related to the dot tool
 #---------------------------------------------------------------------------
 
-# If the CLASS_DIAGRAMS tag is set to YES, doxygen will generate a class diagram
-# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
-# NO turns the diagrams off. Note that this option also works with HAVE_DOT
-# disabled, but it is recommended to install and use dot, since it yields more
-# powerful graphs.
-# The default value is: YES.
-
-CLASS_DIAGRAMS         = YES
-
 # You can include diagrams made with dia in doxygen documentation. Doxygen will
 # then run dia to produce the diagram and insert it in the documentation. The
 # DIA_PATH tag allows you to specify the directory where the dia binary resides.

include/cuco/detail/hash_functions.cuh

@@ -42,6 +42,7 @@ struct MurmurHash3_32 {
   using argument_type = Key;       ///< The type of the values taken as argument
   using result_type   = uint32_t;  ///< The type of the hash values produced
 
+  /// Default constructor
   __host__ __device__ constexpr MurmurHash3_32() : MurmurHash3_32{0} {}
 
   /**

include/cuco/detail/probe_sequence_impl.cuh

@@ -47,7 +47,7 @@ class probe_sequence_base {
   static constexpr uint32_t vector_width() noexcept { return 2u; }
 };
 
-/*
+/**
  * @brief Base class of probe sequence implementation.
  *
  * Hash map operations are generally memory-bandwidth bound. A vector-load loads two consecutive
@@ -70,14 +70,17 @@ template <typename Key,
           uint32_t CGSize>
 class probe_sequence_impl_base {
  protected:
-  using value_type         = cuco::pair_type<Key, Value>;
-  using key_type           = Key;
-  using mapped_type        = Value;
-  using atomic_key_type    = cuda::atomic<key_type, Scope>;
-  using atomic_mapped_type = cuda::atomic<mapped_type, Scope>;
-  using pair_atomic_type   = cuco::pair_type<atomic_key_type, atomic_mapped_type>;
-  using iterator           = pair_atomic_type*;
-  using const_iterator     = pair_atomic_type const*;
+  using value_type         = cuco::pair_type<Key, Value>;       ///< Type of key/value pairs
+  using key_type           = Key;                               ///< Key type
+  using mapped_type        = Value;                             ///< Type of mapped values
+  using atomic_key_type    = cuda::atomic<key_type, Scope>;     ///< Type of atomic keys
+  using atomic_mapped_type = cuda::atomic<mapped_type, Scope>;  ///< Type of atomic mapped values
+  /// Pair type of atomic key and atomic mapped value
+  using pair_atomic_type = cuco::pair_type<atomic_key_type, atomic_mapped_type>;
+  /// Type of the forward iterator to `pair_atomic_type`
+  using iterator = pair_atomic_type*;
+  /// Type of the forward iterator to `const pair_atomic_type`
+  using const_iterator = pair_atomic_type const*;
 
   /**
    * @brief Returns the number of elements loaded with each vector-load.
@@ -115,6 +118,8 @@ class probe_sequence_impl_base {
  public:
   /**
    * @brief Returns the capacity of the hash map.
+   *
+   * @return The capacity of the hash map
    */
   __host__ __device__ __forceinline__ std::size_t get_capacity() const noexcept
   {
@@ -123,11 +128,15 @@ class probe_sequence_impl_base {
 
   /**
    * @brief Returns slots array.
+   *
+   * @return Slots array
    */
   __device__ __forceinline__ iterator get_slots() noexcept { return slots_; }
 
   /**
    * @brief Returns slots array.
+   *
+   * @return Slots array
    */
   __device__ __forceinline__ const_iterator get_slots() const noexcept { return slots_; }