Require C++14

Author: serge-sans-paille

.github/workflows/cxx-versions.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        cxx-version: [11, 14, 17, 20]
+        cxx-version: [14, 17, 20]
     steps:
     - uses: actions/checkout@v3
     - name: Install dependencies

README.md

@@ -37,7 +37,7 @@ The mathematical functions are a lightweight implementation of the algorithms or
 
 ## Requirements
 
-`xsimd` requires a C++11 compliant compiler. The following C++ compilers are supported:
+`xsimd` requires a C++14 compliant compiler. The following C++ compilers are supported:
 
 Compiler                | Version
 ------------------------|-------------------------------

benchmark/CMakeLists.txt

@@ -35,19 +35,18 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"
     endif()
 
     if(NOT MSVC)
-        CHECK_CXX_COMPILER_FLAG("-std=c++11" HAS_CPP11_FLAG)
         if (ENABLE_XTL_COMPLEX)
-            CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
-            if (NOT HAS_CPP14_FLAG)
-                message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++14 support when xtl complex support is enabled")
+            CHECK_CXX_COMPILER_FLAG("-std=c++17" HAS_CPP17_FLAG)
+            if (NOT HAS_CPP17_FLAG)
+                message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++17 support when xtl complex support is enabled")
             endif()
-            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+            set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
         else()
-            CHECK_CXX_COMPILER_FLAG("-std=c++11" HAS_CPP11_FLAG)
-            if (NOT HAS_CPP11_FLAG)
-                message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++11 support!")
+            CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
+            if (NOT HAS_CPP14_FLAG)
+                message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++14 support!")
             else()
-                set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+                set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
             endif()
         endif()
     endif()

docs/source/index.rst

@@ -69,7 +69,7 @@ The following SIMD instruction set extensions are supported:
 +--------------+---------------------------------------------------------+
 
 
-`xsimd` requires a C++11 compliant compiler. The following C++ compilers are supported:
+`xsimd` requires a C++14 compliant compiler. The following C++ compilers are supported:
 
 +-------------------------+-------------------------------+
 | Compiler                | Version                       |

test/CMakeLists.txt

@@ -60,11 +60,11 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU"
                 endif()
                 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
             else()
-                CHECK_CXX_COMPILER_FLAG("-std=c++11" HAS_CPP11_FLAG)
-                if (NOT HAS_CPP11_FLAG)
-                    message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++11 support!")
+                CHECK_CXX_COMPILER_FLAG("-std=c++14" HAS_CPP14_FLAG)
+                if (NOT HAS_CPP14_FLAG)
+                    message(FATAL_ERROR "Unsupported compiler -- xsimd requires C++14 support!")
                 else()
-                    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+                    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
                 endif()
             endif()
         endif()

test/check_inline_specifier.sh

@@ -20,7 +20,7 @@ sed -r -n '/^####/,$ p' < $0 > $query_file
 
 log_file=`mktemp -t`
 
-clang-query --extra-arg "-std=c++11" --extra-arg="-I$top_srcdir/include" -f $query_file $top_srcdir/include/xsimd/xsimd.hpp -- | tee $log_file
+clang-query --extra-arg "-std=c++14" --extra-arg="-I$top_srcdir/include" -f $query_file $top_srcdir/include/xsimd/xsimd.hpp -- | tee $log_file
 
 { grep -E '^0 matches.' $log_file && failed=0 ; } || failed=1