Introduce macro DUNE_NOEXCEPT.

Macro to use C++11 feature noexcept specifier.
Add test for CMake and autotools.

cmake/modules/CheckCXX11Features.cmake

@@ -9,6 +9,7 @@
 # HAS_ATTRIBUTE_DEPRECATED_MSG     True if attribute deprecated("msg") is supported
 # HAVE_CONSTEXPR                   True if constexpr is supported
 # HAVE_KEYWORD_FINAL               True if final is supported.
+# HAVE_NOEXCEPT_SPECIFIER          True if nonexcept specifier is supported.
 
 include(CMakePushCheckState)
 cmake_push_check_state()
@@ -166,4 +167,22 @@ check_cxx_source_compiles("
 " HAVE_KEYWORD_FINAL
 )
 
+# nonexcept specifier
+check_cxx_source_compiles("
+  void func1() noexcept {}
+
+  void func2() noexcept(true) {}
+
+  template <class T>
+  void func3() noexcept(noexcept(T())) {}
+
+  int main(void)
+  {
+    func1();
+    func2();
+    func3<int>();
+  }
+" HAVE_NOEXCEPT_SPECIFIER
+)
+
 cmake_pop_check_state()

config.h.cmake

@@ -107,6 +107,9 @@
 /* Define to 1 if C++11 constexpr is supported */
 #cmakedefine HAVE_CONSTEXPR 1
 
+/* Define to 1 if C++11 nonexcept specifier is supported */
+#cmakedefine HAVE_NOEXCEPT_SPECIFIER 1
+
 /* does the compiler support the keyword 'final'? */
 #cmakedefine HAVE_KEYWORD_FINAL 1
 

dune/common/std/CMakeLists.txt

-install(FILES
-        constexpr.hh
-        final.hh
-        type_traits.hh
-DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/dune/common/std)
+install(
+  FILES
+  constexpr.hh
+  final.hh
+  noexcept.hh
+  type_traits.hh
+  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/dune/common/std)

dune/common/std/Makefile.am

@@ -2,6 +2,7 @@ stdincludedir = $(includedir)/dune/common/std
 stdinclude_HEADERS = 				\
   constexpr.hh \
   final.hh \
+  noexcept.hh \
   type_traits.hh
 
 EXTRA_DIST = CMakeLists.txt

dune/common/std/noexcept.hh

+#ifndef DUNE_COMMON_STD_NOEXCEPT_HH
+#define DUNE_COMMON_STD_NOEXCEPT_HH
+
+/**
+ * \file
+ * \brief Definition of the DUNE_NOEXCEPT macro
+ */
+
+#if HAVE_NOEXCEPT_SPECIFIER || defined(DOXYGEN)
+
+/**
+ * \brief Set method to noexcept if supported by the compiler.
+ * \code
+   #include <dune/common/std/noexcept.hh>
+ * \endcode
+ *
+ * This is a preprocessor define which can be used to mark methods as
+ * noexcept.
+ *
+ * \note This does not support the noexcept operator.
+ */
+#define DUNE_NOEXCEPT noexcept
+
+#else
+#define DUNE_NOEXCEPT
+#endif // HAVE_NOEXCEPT_SPECIFIER || defined(DOXYGEN)
+
+#endif // DUNE_COMMON_STD_NOEXCEPT_HH

m4/Makefile.am

@@ -14,6 +14,7 @@ ALLM4S = 					\
 	cxx0x_nullptr.m4			\
 	cxx11_constexpr.m4			\
 	cxx11_final.m4				\
+	cxx11_noexcept.m4			\
 	dune.m4					\
 	dune_all.m4				\
 	dune_autobuild.m4			\

m4/cxx11_noexcept.m4

+# tests for C++11 noexcept specifier support
+# this test does not test the noexcept operator
+# the associated macro is called HAVE_NOEXCEPT_SPECIFIER
+
+AC_DEFUN([CXX11_NOEXCEPT_SPECIFIER_CHECK],[
+  AC_CACHE_CHECK([for C++11 noexcept specifier],
+    dune_cv_cxx11_noexcept_specifier_support,
+    [
+    AC_REQUIRE([AC_PROG_CXX])
+    AC_REQUIRE([CXX11])
+    AC_LANG_PUSH([C++])
+    AC_COMPILE_IFELSE([
+      AC_LANG_PROGRAM(
+        [
+          void func1() noexcept {}
+
+          void func2() noexcept(true) {}
+
+          template <class T>
+          void func3() noexcept(noexcept(T())) {}
+        ],[
+          func1();
+          func2();
+          func3<int>();
+        ])],
+      dune_cv_cxx11_noexcept_specifier_support=yes,
+      dune_cv_cxx11_noexcept_specifier_support=no)
+    AC_LANG_POP
+  ])
+  if test "$dune_cv_cxx11_noexcept_specifier_support" = yes; then
+    AC_DEFINE(HAVE_NOEXCEPT_SPECIFIER, 1,
+      [Define to 1 if C++11 nonexcept specifier is supported])
+  fi
+])

m4/dune_common.m4

@@ -21,6 +21,7 @@ AC_DEFUN([DUNE_COMMON_CHECKS],
   AC_REQUIRE([CXX11])
   AC_REQUIRE([NULLPTR_CHECK])
   AC_REQUIRE([CXX11_CONSTEXPR_CHECK])
+  AC_REQUIRE([CXX11_NOEXCEPT_SPECIFIER_CHECK])
   AC_REQUIRE([DUNE_BOOST_BASE])
   AC_REQUIRE([DUNE_LINKCXX])
   AC_REQUIRE([DUNE_CHECKDEPRECATED])