From 251a1f02a0ae7eb93690dd0daad8575a3c0451b3 Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Sun, 6 Apr 2014 10:38:50 +0200
Subject: Features: Add cxx_local_type_template_args.

---
 Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst          |  5 +++++
 Modules/Compiler/GNU-CXX-FeatureTests.cmake         |  1 +
 Source/cmMakefile.cxx                               |  1 +
 .../cxx_local_type_template_args.cpp                | 21 +++++++++++++++++++++
 4 files changed, 28 insertions(+)
 create mode 100644 Tests/CompileFeatures/cxx_local_type_template_args.cpp

diff --git a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
index fab8535..1a76a3b 100644
--- a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
+++ b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
@@ -117,6 +117,11 @@ The features known to this version of CMake are:
 
   .. _N2927: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2009/n2927.pdf
 
+``cxx_local_type_template_args``
+  Local and unnamed types as template arguments, as defined in N2657_.
+
+  .. _N2657: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm
+
 ``cxx_noexcept``
   Exception specifications, as defined in N3050_.
 
diff --git a/Modules/Compiler/GNU-CXX-FeatureTests.cmake b/Modules/Compiler/GNU-CXX-FeatureTests.cmake
index 506d718..586ab4b 100644
--- a/Modules/Compiler/GNU-CXX-FeatureTests.cmake
+++ b/Modules/Compiler/GNU-CXX-FeatureTests.cmake
@@ -38,6 +38,7 @@ set(_cmake_feature_test_cxx_unrestricted_unions "${GNU46_CXX11}")
 set(GNU45_CXX11 "${_oldestSupported} && __cplusplus >= 201103L")
 set(_cmake_feature_test_cxx_explicit_conversions "${GNU45_CXX11}")
 set(_cmake_feature_test_cxx_lambdas "${GNU45_CXX11}")
+set(_cmake_feature_test_cxx_local_type_template_args "${GNU45_CXX11}")
 set(_cmake_feature_test_cxx_raw_string_literals "${GNU45_CXX11}")
 # TODO: Should be supported by GNU 4.4
 set(GNU44_CXX11 "${_oldestSupported} && __cplusplus >= 201103L")
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index f86a999..7b960a3 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -63,6 +63,7 @@
   F(cxx_inheriting_constructors) \
   F(cxx_inline_namespaces) \
   F(cxx_lambdas) \
+  F(cxx_local_type_template_args) \
   F(cxx_noexcept) \
   F(cxx_nonstatic_member_init) \
   F(cxx_nullptr) \
diff --git a/Tests/CompileFeatures/cxx_local_type_template_args.cpp b/Tests/CompileFeatures/cxx_local_type_template_args.cpp
new file mode 100644
index 0000000..802ea7a
--- /dev/null
+++ b/Tests/CompileFeatures/cxx_local_type_template_args.cpp
@@ -0,0 +1,21 @@
+
+template <typename T>
+class X { };
+template <typename T>
+void f(T t) { }
+struct {} unnamed_obj;
+void f() {
+  struct A { };
+  enum { e1 };
+  typedef struct {} B;
+  B b;
+  X<A> x1;
+  X<A*> x2;
+  X<B> x3;
+  f(e1);
+  f(unnamed_obj);
+  f(b);
+  (void)x1;
+  (void)x2;
+  (void)x3;
+}
-- 
cgit v0.12