cleanup + no gl_attr_force_inline in docs + rem const from ret types (edge)

Author: SpectraL519

Doxyfile

@@ -2324,15 +2324,15 @@ ENABLE_PREPROCESSING   = YES
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-MACRO_EXPANSION        = NO
+MACRO_EXPANSION        = YES
 
 # If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
 # the macro expansion is limited to the macros specified with the PREDEFINED and
 # EXPAND_AS_DEFINED tags.
 # The default value is: NO.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-EXPAND_ONLY_PREDEF     = NO
+EXPAND_ONLY_PREDEF     = YES
 
 # If the SEARCH_INCLUDES tag is set to YES, the include files in the
 # INCLUDE_PATH will be searched if a #include is found.
@@ -2365,7 +2365,7 @@ INCLUDE_FILE_PATTERNS  =
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             =
+PREDEFINED             = "gl_attr_force_inline="
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
 # tag can be used to specify a list of macro names that should be expanded. The

include/gl/graph.hpp

@@ -442,11 +442,11 @@ class graph final {
     // clang-format off
     // gl_attr_force_inline misplacement
 
-    gl_attr_force_inline const edge_type add_edge(vertex_type source, vertex_type target) {
+    gl_attr_force_inline edge_type add_edge(vertex_type source, vertex_type target) {
         return this->add_edge(source.id(), target.id());
     }
 
-    gl_attr_force_inline const edge_type add_edge_with(
+    gl_attr_force_inline edge_type add_edge_with(
         vertex_type source, vertex_type target, const edge_properties_type& properties
     )
     requires(traits::c_non_empty_properties<edge_properties_type>)

mkdocs.yml

@@ -13,10 +13,10 @@ nav:
       - Traits & Concepts: cpp-gl/group__gl__traits.md
       - Generic Types: cpp-gl/group__gl__types.md
       - Utilities: cpp-gl/group__gl__util.md
-  - HGL:
-      - Overview: cpp-gl/group__hgl.md
-      - Algorithms: cpp-gl/group__hgl__alg.md
-  - Full API Index:
+  # - HGL:
+  #     - Overview: cpp-gl/group__hgl.md
+  #     - Algorithms: cpp-gl/group__hgl__alg.md
+  - API Index:
       - Namespaces: cpp-gl/namespaces.md
       - Classes & Structs: cpp-gl/annotated.md
       - Files: cpp-gl/files.md
@@ -25,8 +25,6 @@ theme:
   name: material
   logo: img/cpp-gl-hex.png
   favicon: img/cpp-gl-hex.png
-  # icon:
-  #   logo: material/graph
   features:
     - navigation.tabs
     - navigation.sections
@@ -86,6 +84,10 @@ plugins:
             EXTRACT_PRIVATE: "NO"
             INTERNAL_DOCS: "NO"
             EXCLUDE_SYMBOLS: "std doctest doctest_detail_test_suite_ns detail *::detail"
+            ENABLE_PREPROCESSING: "YES"
+            MACRO_EXPANSION: "YES"
+            EXPAND_ONLY_PREDEF: "YES"
+            PREDEFINED: "gl_attr_force_inline="
 
 extra_javascript:
   - scripts/mathjax.js