Ugraded to xtensor 0.27.0 (#253)

Author: JohanMabille

.github/workflows/osx.yml

@@ -39,7 +39,7 @@ jobs:
       run: micromamba install 'openblas==0.3.29=openmp*' blas-devel
 
     - name: Configure using CMake
-      run: cmake -Bbuild -DCMAKE_CXX_STANDARD=17 -DBUILD_TESTS=ON -DCMAKE_PREFIX_PATH=$CONDA_PREFIX -DCMAKE_SYSTEM_IGNORE_PATH=/usr/lib
+      run: cmake -Bbuild -DBUILD_TESTS=ON -DCMAKE_PREFIX_PATH=$CONDA_PREFIX -DCMAKE_SYSTEM_IGNORE_PATH=/usr/lib
 
     - name: Build
       working-directory: build

CMakeLists.txt

@@ -8,8 +8,19 @@
 ############################################################################
 
 cmake_minimum_required(VERSION 3.29)
+
+# Otherwise adds std=gnu++17 on OSX ...
+set(CMAKE_CXX_EXTENSIONS OFF)
+
 project(xtensor-blas)
 
+# Otherwise adds flags for C++11 standard on OSX ...
+if(NOT CMAKE_CXX_STANDARD)
+    set(CMAKE_CXX_STANDARD 20)
+endif()
+message(STATUS "🔧 C++ standard: ${CMAKE_CXX_STANDARD}")
+
+
 set(INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
 set(XTENSOR_BLAS_INCLUDE_DIR ${INCLUDE_DIR})
 
@@ -44,7 +55,7 @@ message(STATUS "xtensor-blas v${${PROJECT_NAME}_VERSION}")
 # Dependencies
 # ============
 
-set(xtensor_REQUIRED_VERSION 0.26.0)
+set(xtensor_REQUIRED_VERSION 0.27.0)
 if(TARGET xtensor)
     set(xtensor_VERSION ${XTENSOR_VERSION_MAJOR}.${XTENSOR_VERSION_MINOR}.${XTENSOR_VERSION_PATCH})
     # Note: This is not SEMVER compatible comparison
@@ -77,6 +88,8 @@ target_include_directories(xtensor-blas
     $<BUILD_INTERFACE:${XTENSOR_BLAS_INCLUDE_DIR}>
     $<INSTALL_INTERFACE:include>)
 
+target_compile_features(xtensor-blas INTERFACE cxx_std_20)
+
 OPTION(CXXBLAS_DEBUG "print cxxblas debug information" OFF)
 OPTION(XTENSOR_USE_FLENS_BLAS "use FLENS generic implementation instead of cblas" OFF)
 # Decide whether to use OpenBLAS or not.
@@ -101,6 +114,8 @@ endif()
 OPTION(BUILD_TESTS "xtensor-blas test suite" OFF)
 OPTION(BUILD_BENCHMARK "xtensor-blas test suite" OFF)
 
+OPTION(CPP23 "enables C++23 (experimental)" OFF)
+
 if(BUILD_TESTS)
     enable_testing()
     include_directories(${XTENSOR_BLAS_INCLUDE_DIR})

environment-dev.yml

@@ -3,5 +3,5 @@ channels:
 - conda-forge
 dependencies:
 - cmake
-- xtensor>=0.26.0,<0.27
+- xtensor>=0.27.0,<0.28
 - doctest

test/CMakeLists.txt

@@ -36,27 +36,27 @@ string(TOUPPER "${CMAKE_BUILD_TYPE}" U_CMAKE_BUILD_TYPE)
 
 include(set_compiler_flag.cmake)
 
-if(CPP20)
+if(CPP23)
   # User requested C++20, but compiler might not oblige.
   set_compiler_flag(
     _cxx_std_flag CXX
-    "-std=c++20"  # this should work with GNU, Intel, PGI
-    "/std:c++20"  # this should work with MSVC
+    "-std=c++23"  # this should work with GNU, Intel, PGI
+    "/std:c++23"  # this should work with MSVC
   )
   if(_cxx_std_flag)
-    message(STATUS "Building with C++20")
+    message(STATUS "Building with C++23")
   endif()
 else()
   set_compiler_flag(
     _cxx_std_flag CXX REQUIRED
-    "-std=c++17"  # this should work with GNU, Intel, PGI
-    "/std:c++17"  # this should work with MSVC
+    "-std=c++20"  # this should work with GNU, Intel, PGI
+    "/std:c++20"  # this should work with MSVC
   )
-  message(STATUS "Building with C++17")
+  message(STATUS "Building with C++20")
 endif()
 
 if(NOT _cxx_std_flag)
-  message(FATAL_ERROR "xtensor-blas needs a C++17-compliant compiler.")
+  message(FATAL_ERROR "xtensor-blas needs a C++20-compliant compiler.")
 endif()
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR (CMAKE_CXX_COMPILER_ID MATCHES "Intel" AND NOT WIN32))