From 8e5c1eab1f0ab69f6b400f388579157bc2aca236 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sun, 23 May 2021 19:17:50 +0200
Subject: [PATCH] WIP: Use charconv functions

---
 CMakeLists.txt                | 10 ++++++++++
 conversion/stringconversion.h |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 913f971..cba5a78 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -197,6 +197,16 @@ if (NOT ENABLE_THREAD_LOCAL)
         PROPERTY COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_NO_THREAD_LOCAL)
 endif ()
 
+# configure use of charconv
+option(ENABLE_CHARCONV "enables use charconv for integer conversions" ON)
+option(ENABLE_CHARCONV_FP "enables use charconv for floating point conversions" ON)
+if (ENABLE_CHARCONV)
+    list(APPEND META_PUBLIC_COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_ENABLE_CHARCONV)
+endif ()
+if (ENABLE_CHARCONV_FP)
+    list(APPEND META_PUBLIC_COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_ENABLE_CHARCONV_FP)
+endif ()
+
 # include modules to apply configuration
 include(BasicConfig)
 include(WindowsResources)
diff --git a/conversion/stringconversion.h b/conversion/stringconversion.h
index 701dce0..09c8c6e 100644
--- a/conversion/stringconversion.h
+++ b/conversion/stringconversion.h
@@ -25,6 +25,10 @@
 #include <ranges>
 #endif
 
+#if defined(CPP_UTILITIES_ENABLE_CHARCONV) || defined(CPP_UTILITIES_ENABLE_CHARCONV_FP)
+#include <charconv>
+#endif
+
 namespace CppUtilities {
 
 /*!