From: Matthias Maier <tamiko@43-1.org>
Date: Fri, 22 May 2020 03:09:27 +0000 (-0500)
Subject: remove DEAL_II_IS_TRIVIALLY_COPYABLE
X-Git-Tag: v9.3.0-rc1~1575^2~15
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a626281d9a06528365980499a06fb92100f8b28;p=dealii.git

remove DEAL_II_IS_TRIVIALLY_COPYABLE
---

diff --git a/cmake/checks/check_01_cxx_features.cmake b/cmake/checks/check_01_cxx_features.cmake
index 151e50b65a..f626e1b958 100644
--- a/cmake/checks/check_01_cxx_features.cmake
+++ b/cmake/checks/check_01_cxx_features.cmake
@@ -21,7 +21,6 @@
 #   DEAL_II_HAVE_CXX17
 #
 #   DEAL_II_HAVE_ATTRIBUTE_FALLTHROUGH
-#   DEAL_II_HAVE_CXX11_IS_TRIVIALLY_COPYABLE
 #   DEAL_II_HAVE_CXX14_CONSTEXPR
 #   DEAL_II_HAVE_FP_EXCEPTIONS
 #   DEAL_II_HAVE_COMPLEX_OPERATOR_OVERLOADS
@@ -269,7 +268,6 @@ ENDIF()
 UNSET_IF_CHANGED(CHECK_CXX_FEATURES_FLAGS_SAVED
   "${CMAKE_REQUIRED_FLAGS}"
   DEAL_II_HAVE_ATTRIBUTE_FALLTHROUGH
-  DEAL_II_HAVE_CXX11_IS_TRIVIALLY_COPYABLE
   DEAL_II_HAVE_CXX14_CONSTEXPR
   DEAL_II_HAVE_FP_EXCEPTIONS
   DEAL_II_HAVE_COMPLEX_OPERATOR_OVERLOADS
@@ -337,13 +335,6 @@ ENDIF()
 
 ADD_FLAGS(CMAKE_REQUIRED_FLAGS "${DEAL_II_CXX_VERSION_FLAG}")
 
-CHECK_CXX_SOURCE_COMPILES(
-  "
-  #include <type_traits>
-  int main(){ std::is_trivially_copyable<int> bob; }
-  "
-  DEAL_II_HAVE_CXX11_IS_TRIVIALLY_COPYABLE)
-
 RESET_CMAKE_REQUIRED()
 
 #
diff --git a/cmake/configure/configure_1_threads.cmake b/cmake/configure/configure_1_threads.cmake
index 520f7ceaee..c15b94b78c 100644
--- a/cmake/configure/configure_1_threads.cmake
+++ b/cmake/configure/configure_1_threads.cmake
@@ -151,16 +151,6 @@ MACRO(FEATURE_THREADS_CONFIGURE_EXTERNAL)
     ENDIF()
   ENDIF()
 
-  #
-  # Workaround for an issue with C++11 mode, non gcc-compilers and missing
-  # template<typename T> std::is_trivially_copyable<T>
-  #
-  IF( NOT DEAL_II_HAVE_CXX11_IS_TRIVIALLY_COPYABLE AND
-      NOT CMAKE_CXX_COMPILER_ID MATCHES "GNU" )
-    LIST(APPEND THREADS_DEFINITIONS "TBB_IMPLEMENT_CPP0X=1")
-    LIST(APPEND THREADS_USER_DEFINITIONS "TBB_IMPLEMENT_CPP0X=1")
-  ENDIF()
-
   SETUP_THREADING()
 
   LIST(APPEND THREADS_LIBRARIES ${TBB_LIBRARIES})
diff --git a/include/deal.II/base/config.h.in b/include/deal.II/base/config.h.in
index 4dbecd2c06..61181c61fa 100644
--- a/include/deal.II/base/config.h.in
+++ b/include/deal.II/base/config.h.in
@@ -139,7 +139,6 @@
 
 #cmakedefine DEAL_II_HAVE_CXX17
 
-#cmakedefine DEAL_II_HAVE_CXX11_IS_TRIVIALLY_COPYABLE
 #cmakedefine DEAL_II_HAVE_CXX14_CONSTEXPR
 #cmakedefine DEAL_II_HAVE_FP_EXCEPTIONS
 #cmakedefine DEAL_II_HAVE_COMPLEX_OPERATOR_OVERLOADS