From 623e10839e0e1aed104fb7e99e9a804fd91c301a Mon Sep 17 00:00:00 2001
From: Arthur LAURENT <arthur.laurent4@gmail.com>
Date: Mon, 28 Oct 2024 16:56:22 +0100
Subject: [PATCH] add C++20 module

---
 tinyxml2.cppm | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++
 tinyxml2.h    | 17 ++++++++++---
 2 files changed, 82 insertions(+), 4 deletions(-)
 create mode 100644 tinyxml2.cppm

diff --git a/tinyxml2.cppm b/tinyxml2.cppm
new file mode 100644
index 00000000..83702e1f
--- /dev/null
+++ b/tinyxml2.cppm
@@ -0,0 +1,69 @@
+/*
+Original code by Lee Thomason (www.grinninglizard.com)
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any
+damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any
+purpose, including commercial applications, and to alter it and
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must
+not claim that you wrote the original software. If you use this
+software in a product, an acknowledgment in the product documentation
+would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and
+must not be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source
+distribution.
+*/
+
+module;
+
+#include <tinyxml2.h>
+
+export module tinyxml2;
+
+export using ::TIXML2_MAJOR_VERSION;
+export using ::TIXML2_MINOR_VERSION;
+export using ::TIXML2_PATCH_VERSION;
+
+#pragma push_macro("TINYXML2_MAJOR_VERSION")
+#undef TINYXML2_MAJOR_VERSION
+export inline constexpr auto TINYXML2_MAJOR_VERSION =
+#pragma pop_macro("TINYXML2_MAJOR_VERSION")
+    TINYXML2_MAJOR_VERSION;
+
+#pragma push_macro("TINYXML2_MINOR_VERSION")
+#undef TINYXML2_MINOR_VERSION
+export inline constexpr auto TINYXML2_MINOR_VERSION =
+#pragma pop_macro("TINYXML2_MINOR_VERSION")
+    TINYXML2_MINOR_VERSION;
+
+#pragma push_macro("TINYXML2_PATCH_VERSION")
+#undef TINYXML2_PATCH_VERSION
+export inline constexpr auto TINYXML2_PATCH_VERSION =
+#pragma pop_macro("TINYXML2_PATCH_VERSION")
+    TINYXML2_PATCH_VERSION;
+
+export namespace tinyxml2 {
+using tinyxml2::Whitespace;
+using tinyxml2::XMLAttribute;
+using tinyxml2::XMLComment;
+using tinyxml2::XMLConstHandle;
+using tinyxml2::XMLDeclaration;
+using tinyxml2::XMLDocument;
+using tinyxml2::XMLElement;
+using tinyxml2::XMLError;
+using tinyxml2::XMLHandle;
+using tinyxml2::XMLNode;
+using tinyxml2::XMLPrinter;
+using tinyxml2::XMLText;
+using tinyxml2::XMLUnknown;
+using tinyxml2::XMLUtil;
+using tinyxml2::XMLVisitor;
+using tinyxml2::DynArray;
+} // namespace tinyxml2
diff --git a/tinyxml2.h b/tinyxml2.h
index 599397ca..6deea4ce 100644
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -93,12 +93,21 @@ distribution.
 #endif
 #endif
 
+#if defined(__cplusplus) && __cplusplus >= 201703L
+#define TINYXML2_CPP17_CONSTANT inline constexpr
+#elif defined(__cplusplus) && __cplusplus >= 201103L
+#define TINYXML2_CPP17_CONSTANT static constexpr
+#else 
+#define TINYXML2_CPP17_CONSTANT static const
+#endif
+
+
 /* Versioning, past 1.0.14:
 	http://semver.org/
 */
-static const int TIXML2_MAJOR_VERSION = 10;
-static const int TIXML2_MINOR_VERSION = 0;
-static const int TIXML2_PATCH_VERSION = 0;
+TINYXML2_CPP17_CONSTANT int TIXML2_MAJOR_VERSION = 10;
+TINYXML2_CPP17_CONSTANT int TIXML2_MINOR_VERSION = 0;
+TINYXML2_CPP17_CONSTANT int TIXML2_PATCH_VERSION = 0;
 
 #define TINYXML2_MAJOR_VERSION 10
 #define TINYXML2_MINOR_VERSION 0
@@ -109,7 +118,7 @@ static const int TIXML2_PATCH_VERSION = 0;
 // system, and the capacity of the stack. On the other hand, it's a trivial
 // attack that can result from ill, malicious, or even correctly formed XML,
 // so there needs to be a limit in place.
-static const int TINYXML2_MAX_ELEMENT_DEPTH = 500;
+TINYXML2_CPP17_CONSTANT int TINYXML2_MAX_ELEMENT_DEPTH = 500;
 
 namespace tinyxml2
 {