version bump + docs update

Author: SpectraL519

CMakeLists.txt

@@ -7,7 +7,7 @@ else()
 endif()
 
 project(cpp-ap
-    VERSION 2.3.0
+    VERSION 2.3.1
     DESCRIPTION "Command-line argument parser for C++20"
     HOMEPAGE_URL "https://github.com/SpectraL519/cpp-ap"
     LANGUAGES CXX

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = CPP-AP
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.3.0
+PROJECT_NUMBER         = 2.3.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

docs/tutorial.md

@@ -313,6 +313,10 @@ Command                                 Result
 ./program -i input.txt -o myfile.txt    Parsing success; Printing data to the `myfile.txt` file
 ```
 
+> [!TIP]
+>
+> The setter of the `default_value` parameter accepts any type that is convertible to the argument's value type.
+
 #### 5. `choices` - A list of valid argument values.
 
 The `choices` parameter takes as an argument an instance of `std::initializer_list` or any `std::ranges::range` type such that its value type is convertible to the argument's `value_type`.
@@ -434,7 +438,8 @@ Command                       Result
 
 > [!TIP]
 >
-> The `implicit_value` parameter is extremely useful when combined with default value (e.g. in case of boolean flags - see [Adding Arguments](#adding-arguments)).
+> - The `implicit_value` parameter is extremely useful when combined with default value (e.g. in case of boolean flags - see [Adding Arguments](#adding-arguments)).
+> - The setter of the `implicit_value` parameter accepts any type that is convertible to the argument's value type.
 
 #### 4. On-flag actions - For optional arguments, apart from value actions, you can specify on-flag actions which are executed immediately after parsing an argument's flag.