From: David Wells Date: Sun, 5 Nov 2023 22:59:32 +0000 (-0500) Subject: Update some more documentation to refer to our C++17 requirement. X-Git-Tag: relicensing~313^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F16246%2Fhead;p=dealii.git Update some more documentation to refer to our C++17 requirement. --- diff --git a/cmake/setup_compiler_flags_gnu.cmake b/cmake/setup_compiler_flags_gnu.cmake index b3424f3f27..ea945ce9bf 100644 --- a/cmake/setup_compiler_flags_gnu.cmake +++ b/cmake/setup_compiler_flags_gnu.cmake @@ -96,14 +96,6 @@ enable_if_supported(DEAL_II_WARNING_FLAGS "-Wno-literal-suffix") # enable_if_supported(DEAL_II_WARNING_FLAGS "-Wno-psabi") -# -# Disable warnings regarding improper direct memory access -# if compiling without C++17 support -# -if(NOT DEAL_II_HAVE_CXX17) - enable_if_supported(DEAL_II_WARNING_FLAGS "-Wno-class-memaccess") -endif() - if(CMAKE_CXX_COMPILER_ID MATCHES "Clang") # Enable warnings for conversion from real types to integer types. # The warning is too noisy in gcc and therefore only enabled for clang. diff --git a/cmake/setup_write_config.cmake b/cmake/setup_write_config.cmake index 43418666a5..57faec6809 100644 --- a/cmake/setup_write_config.cmake +++ b/cmake/setup_write_config.cmake @@ -82,8 +82,6 @@ elseif(DEAL_II_HAVE_CXX20) _both("# C++ language standard: C++20\n") elseif(DEAL_II_HAVE_CXX17) _both("# C++ language standard: C++17\n") -elseif(DEAL_II_HAVE_CXX14) - _both("# C++ language standard: C++14\n") endif() _both("# Vectorization level: ${DEAL_II_VECTORIZATION_WIDTH_IN_BITS} bit") diff --git a/doc/developers/cmake-internals.html b/doc/developers/cmake-internals.html index d2a69fe745..1a931482ef 100644 --- a/doc/developers/cmake-internals.html +++ b/doc/developers/cmake-internals.html @@ -190,7 +190,7 @@ set_target_properties(${DEAL_II_TARGET_NAME}_${build_lowercase} # enable_if_supported(DEAL_II_CXX_FLAGS "-march=native") # ENDIF() # -# Checks for compiler features (such as C++14 support) and compiler +# Checks for compiler features (such as C++17 support) and compiler # specific bugs that # - usually set up further configuration (such as preprocessor # definitions) @@ -223,7 +223,7 @@ set_target_properties(${DEAL_II_TARGET_NAME}_${build_lowercase} guarded with DEAL_II_ALLOW_PLATFORM_INTROSPECTION ./cmake/checks/check_01_cxx_features.cmake - - Check for supported C++ language features such as sufficient C++14 + - Check for supported C++ language features such as sufficient C++17 support ./cmake/checks/check_02_compiler_features.cmake diff --git a/doc/users/cmake_dealii.html b/doc/users/cmake_dealii.html index f9e80808d7..c16240607b 100644 --- a/doc/users/cmake_dealii.html +++ b/doc/users/cmake_dealii.html @@ -418,12 +418,11 @@ library - builds and installs the 'library' component

- The library will be compiled with the default C++ standard enabled by - the compiler. This is (as of May 2020) C++14 for all compilers. If - you want to override this behavior, please set the C++ standard - directly for example by configuring with - -DDEAL_II_CXX_FLAGS="-std=c++17", or by setting the - environment variable CXXFLAGS="-std=c++17". + deal.II (as of version 9.6) requires a compiler which supports the C++17 + language standard. If you want to override this behavior, please set the + C++ standard directly for example by configuring with + -DDEAL_II_CXX_FLAGS="-std=c++23", or by setting the + environment variable CXXFLAGS="-std=c++23". Similarly, for enabling SIMD vectorization support, you have to set an appropriate target architecture via -march=..., for