[gcc r14-11192] libstdc++: Improve Doxygen docs for std::allocator_traits specializations

[Jonathan Wakely]

https://gcc.gnu.org/g:e6d2bcf74235ec8760136b2d7364ec472954b65b

commit r14-11192-ge6d2bcf74235ec8760136b2d7364ec472954b65b
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Aug 23 21:54:21 2024 +0100

    libstdc++: Improve Doxygen docs for std::allocator_traits specializations
    
    The main fix here is to use @header so that the docs show the correct
    header file instead of an internal header like alloc_traits.h.
    
    libstdc++-v3/ChangeLog:
    
            * include/bits/alloc_traits.h: Improve doxygen docs for
            allocator_traits specializations.
            * include/bits/memory_resource.h: Likewise.
    
    (cherry picked from commit cd8e0ea7273425931a0843f4355ad61e177e1bf2)

Diff:
---
 libstdc++-v3/include/bits/alloc_traits.h    | 16 ++++++++++++++--
 libstdc++-v3/include/bits/memory_resource.h |  9 +++++++--
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/libstdc++-v3/include/bits/alloc_traits.h b/libstdc++-v3/include/bits/alloc_traits.h
index a81b286eee70..9d55a1912885 100644
--- a/libstdc++-v3/include/bits/alloc_traits.h
+++ b/libstdc++-v3/include/bits/alloc_traits.h
@@ -450,7 +450,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 #pragma GCC diagnostic pop
 
 #if _GLIBCXX_HOSTED
-  /// Partial specialization for std::allocator.
+  /**
+   * @brief  Partial specialization for `std::allocator`
+   * @headerfile memory
+   * @ingroup allocators
+   * @since C++11
+   * @see std::allocator_traits
+  */
   template<typename _Tp>
     struct allocator_traits<allocator<_Tp>>
     {
@@ -621,7 +627,13 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       { return __rhs; }
     };
 
-  /// Explicit specialization for std::allocator<void>.
+  /**
+   * @brief  Explicit specialization for `std::allocator<void>`
+   * @headerfile memory
+   * @ingroup allocators
+   * @since C++11
+   * @see std::allocator_traits
+  */
   template<>
     struct allocator_traits<allocator<void>>
     {
diff --git a/libstdc++-v3/include/bits/memory_resource.h b/libstdc++-v3/include/bits/memory_resource.h
index 5f50b296df7b..db515fb30ef9 100644
--- a/libstdc++-v3/include/bits/memory_resource.h
+++ b/libstdc++-v3/include/bits/memory_resource.h
@@ -52,7 +52,7 @@ namespace std _GLIBCXX_VISIBILITY(default)
 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 namespace pmr
 {
-  /// Class memory_resource
+  /// Class `memory_resource`
   /**
    * @ingroup pmr
    * @headerfile memory_resource
@@ -385,7 +385,12 @@ namespace pmr
 
   template<typename _Alloc> struct allocator_traits;
 
-  /// Partial specialization for std::pmr::polymorphic_allocator
+  /// Partial specialization for `std::pmr::polymorphic_allocator`
+  /**
+   * @ingroup pmr
+   * @headerfile memory_resource
+   * @since C++17
+   */
   template<typename _Tp>
     struct allocator_traits<pmr::polymorphic_allocator<_Tp>>
     {