From: Adam <adam@sigterm.info>
Date: Tue, 21 May 2013 01:55:49 +0000 (-0700)
Subject: Merge pull request #548 from SaberUK/master+variadic-templates
X-Git-Url: https://git.netwichtig.de/gitweb/?a=commitdiff_plain;h=0d95204c9848a56b02a1aca717ddca7f5e60e5a6;hp=7a67685bcb863b0d4199715e86697fee423596c2;p=user%2Fhenk%2Fcode%2Finspircd.git

Merge pull request #548 from SaberUK/master+variadic-templates

Add support for detecting C++11 variadic templates.
---

diff --git a/include/caller.h b/include/caller.h
index f69ff6796..c3a29e8c2 100644
--- a/include/caller.h
+++ b/include/caller.h
@@ -21,8 +21,7 @@
 
 #pragma once
 
-/* Pending some sort of C++11 support */
-#if 0
+#if defined HAS_CXX11_VARIADIC_TEMPLATES
 
 template<typename ReturnType, typename... Args> class CoreExport Handler : public classbase
 {
diff --git a/include/compat.h b/include/compat.h
index 299b32a88..41ae1bbaa 100644
--- a/include/compat.h
+++ b/include/compat.h
@@ -71,6 +71,24 @@
 # define CXX11_OVERRIDE
 #endif
 
+/**
+ * These macros enable the detection of the C++11 variadic templates in
+ * compilers which support them.
+ */
+#if __cplusplus >= 201103L
+# define HAS_CXX11_VARIADIC_TEMPLATES
+#elif defined __clang__
+# if __has_feature(cxx_variadic_templates)
+#  define HAS_CXX11_VARIADIC_TEMPLATES
+# endif
+#elif (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)
+# if defined __GXX_EXPERIMENTAL_CXX0X__
+#  define HAS_CXX11_VARIADIC_TEMPLATES
+# endif
+#elif _MSC_VER >= 1700
+# define HAS_CXX11_VARIADIC_TEMPLATES
+#endif
+
 /**
  * This macro allows methods to be marked as deprecated. To use this, wrap the
  * method declaration in the header file with the macro.