******************************************************************************** conan test conan-center-index/recipes/mdspan/all/test_package/conanfile.py mdspan/0.1.0@ --profile=/home/conan/w/BuildSingleReference/10511/839c577c-bc56-40c5-b14a-adf1470860bd/profile.txt ******************************************************************************** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Release compiler=gcc compiler.libcxx=libstdc++ compiler.version=4.9 os=Linux os_build=Linux [options] [build_requires] [env] mdspan/0.1.0 (test package): Installing package Requirements mdspan/0.1.0 from local cache - Cache Packages mdspan/0.1.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache Installing (downloading, building) binaries... mdspan/0.1.0: Already installed! [HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK [HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK mdspan/0.1.0 (test package): Generator cmake created conanbuildinfo.cmake mdspan/0.1.0 (test package): Generator txt created conanbuildinfo.txt mdspan/0.1.0 (test package): Generated conaninfo.txt mdspan/0.1.0 (test package): Generated graphinfo Using lockfile: '/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64/conan.lock' Using cached profile from lockfile [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK mdspan/0.1.0 (test package): Calling build() ----Running------ > cd '/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="gcc" -DCONAN_COMPILER_VERSION="4.9" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++" -DCMAKE_INSTALL_PREFIX="/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64/package" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package' ----------------- -- The CXX compiler identification is GNU 4.9.4 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/g++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Conan: called by CMake conan helper -- Conan: Adjusting output directories -- Conan: Using cmake targets configuration -- Conan: Adjusting default RPATHs Conan policies -- Conan: Adjusting language standard -- Conan: Checking correct version: 4.9 -- Conan: C++ stdlib: libstdc++ -- Configuring done -- Generating done -- Build files have been written to: /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64 ----Running------ > cmake --build '/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64' '--' '-j3' ----------------- Scanning dependencies of target test_package [ 50%] Building CXX object CMakeFiles/test_package.dir/test_package.cpp.o CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR In file included from /usr/include/c++/4.9/type_traits:35:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/config.hpp:54, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /usr/include/c++/4.9/bits/c++0x_warning.h:32:2: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support is currently experimental, and must be enabled with the -std=c++11 or -std=gnu++11 compiler options. #error This file requires compiler and library support for the \ ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/config.hpp:64:14: error: expected constructor, destructor, or type conversion before '(' token static_assert(_MDSPAN_CPLUSPLUS >= 201102L, "MDSpan requires C++11 or later."); ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:354:9: error: expected nested-name-specifier before '__rv' using __rv = bool; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:356:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:356:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:363:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_right_and_impl_; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:364:9: error: expected nested-name-specifier before '__rv' using __rv = decltype(std::declval() && std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:366:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:366:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:374:1: error: 'constexpr' does not name a type constexpr typename __fold_right_and_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:374:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:389:9: error: expected nested-name-specifier before '__rv' using __rv = bool; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:391:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:391:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:398:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_right_or_impl_; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:399:9: error: expected nested-name-specifier before '__rv' using __rv = decltype(std::declval() || std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:401:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:401:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:409:1: error: 'constexpr' does not name a type constexpr typename __fold_right_or_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:409:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:424:9: error: expected nested-name-specifier before '__rv' using __rv = Arg&&; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:426:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:426:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:433:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_right_plus_impl_; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:434:9: error: expected nested-name-specifier before '__rv' using __rv = decltype(std::declval() + std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:436:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:436:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:444:1: error: 'constexpr' does not name a type constexpr typename __fold_right_plus_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:444:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:459:9: error: expected nested-name-specifier before '__rv' using __rv = Arg&&; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:461:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:461:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:468:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_right_times_impl_; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:469:9: error: expected nested-name-specifier before '__rv' using __rv = decltype(std::declval() * std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:471:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:471:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:479:1: error: 'constexpr' does not name a type constexpr typename __fold_right_times_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:479:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:494:9: error: expected nested-name-specifier before '__rv' using __rv = Arg&&; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:496:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:496:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:503:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_right_assign_impl_; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:504:9: error: expected nested-name-specifier before '__rv' using __rv = decltype(std::declval() = std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:506:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:506:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:514:1: error: 'constexpr' does not name a type constexpr typename __fold_right_assign_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:514:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:529:9: error: expected nested-name-specifier before '__rv' using __rv = Arg&&; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:531:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:531:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:538:9: error: expected nested-name-specifier before '__assign_result_t' using __assign_result_t = decltype(std::declval() = std::declval()); ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:539:9: error: expected nested-name-specifier before '__next_t' using __next_t = __fold_left_assign_impl_<__assign_result_t, Args...>; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:540:9: error: expected nested-name-specifier before '__rv' using __rv = typename __next_t::__rv; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:542:10: error: 'constexpr' does not name a type static constexpr __rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:542:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:550:1: error: 'constexpr' does not name a type constexpr typename __fold_left_assign_impl_::__rv ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:550:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:562:1: error: 'constexpr' does not name a type constexpr __mdspan_enable_fold_comma __fold_comma_impl(Args&&... args) noexcept { return { }; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/macros.hpp:562:1: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46:0, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:56:9: error: expected nested-name-specifier before 'offset_policy' using offset_policy = accessor_basic; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:57:9: error: expected nested-name-specifier before 'element_type' using element_type = ElementType; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:58:9: error: expected nested-name-specifier before 'reference' using reference = ElementType&; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:59:9: error: expected nested-name-specifier before 'pointer' using pointer = ElementType*; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:62:3: error: 'constexpr' does not name a type constexpr pointer ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:62:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:68:3: error: 'constexpr' does not name a type constexpr reference access(pointer p, ptrdiff_t i) const noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:68:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:73:3: error: 'constexpr' does not name a type constexpr pointer decay(pointer p) const noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:73:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:47:0, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/all_type.hpp:53:25: error: 'constexpr' does not name a type _MDSPAN_INLINE_VARIABLE constexpr auto all = all_type{ }; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/all_type.hpp:53:25: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:49:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/dynamic_extent.hpp:53:25: error: 'constexpr' does not name a type _MDSPAN_INLINE_VARIABLE constexpr ptrdiff_t dynamic_extent = -1; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/dynamic_extent.hpp:53:25: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:48:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/trait_backports.hpp:145:1: error: expected unqualified-id before 'using' _MDSPAN_BACKPORT_TRAIT_ALIAS(remove_cv) ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/trait_backports.hpp:146:1: error: expected unqualified-id before 'using' _MDSPAN_BACKPORT_TRAIT_ALIAS(remove_reference) ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/trait_backports.hpp:149:1: error: expected unqualified-id before 'using' using enable_if_t = typename enable_if<_B, _T>::type; ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:58:9: error: expected nested-name-specifier before '__stored_type' using __stored_type = _T; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:60:32: error: 'constexpr' does not name a type MDSPAN_FORCE_INLINE_FUNCTION constexpr _T const &__ref() const noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:60:32: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:63:63: error: expected ';' at end of member declaration MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _T &__ref() noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:63:65: error: 'noexcept' does not name a type MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _T &__ref() noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:74:5: error: 'enable_if_t' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:74:17: error: 'is_empty' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:74:17: error: template argument 3 is invalid enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:74:45: error: expected unqualified-id before '&&' token enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:132:65: error: expected ';' at end of member declaration MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _T &__first() noexcept { return __t_val; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:132:67: error: 'noexcept' does not name a type MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _T &__first() noexcept { return __t_val; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:133:32: error: 'constexpr' does not name a type MDSPAN_FORCE_INLINE_FUNCTION constexpr _T const &__first() const noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:133:32: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:136:66: error: expected ';' at end of member declaration MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _U &__second() noexcept { return __u_val; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:136:68: error: 'noexcept' does not name a type MDSPAN_FORCE_INLINE_FUNCTION _MDSPAN_CONSTEXPR_14 _U &__second() noexcept { return __u_val; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:137:32: error: 'constexpr' does not name a type MDSPAN_FORCE_INLINE_FUNCTION constexpr _U const &__second() const noexcept { ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:137:32: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:142:3: error: 'constexpr' does not name a type constexpr __compressed_pair() noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:142:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:144:3: error: 'constexpr' does not name a type constexpr __compressed_pair(__compressed_pair const &) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:144:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:146:3: error: 'constexpr' does not name a type constexpr __compressed_pair(__compressed_pair &&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:146:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:149:38: error: expected ';' at end of member declaration operator=(__compressed_pair const &) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:149:40: error: 'noexcept' does not name a type operator=(__compressed_pair const &) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:152:31: error: expected ',' or '...' before '&&' token operator=(__compressed_pair &&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:152:33: error: expected ';' at end of member declaration operator=(__compressed_pair &&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:152:35: error: 'noexcept' does not name a type operator=(__compressed_pair &&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:154:22: error: expected ';' at end of member declaration ~__compressed_pair() noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:154:24: error: 'noexcept' does not name a type ~__compressed_pair() noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:156:26: error: 'constexpr' does not name a type MDSPAN_INLINE_FUNCTION constexpr __compressed_pair(_TLike &&__t, _ULike &&__u) ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:156:26: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:164:5: error: 'enable_if_t' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && !_MDSPAN_TRAIT(is_empty, _U)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:164:17: error: 'is_empty' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && !_MDSPAN_TRAIT(is_empty, _U)>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:164:17: error: template argument 3 is invalid enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && !_MDSPAN_TRAIT(is_empty, _U)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:164:45: error: expected unqualified-id before '&&' token enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && !_MDSPAN_TRAIT(is_empty, _U)>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:201:5: error: 'enable_if_t' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _U) && !_MDSPAN_TRAIT(is_empty, _T)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:201:17: error: 'is_empty' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _U) && !_MDSPAN_TRAIT(is_empty, _T)>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:201:17: error: template argument 3 is invalid enable_if_t<_MDSPAN_TRAIT(is_empty, _U) && !_MDSPAN_TRAIT(is_empty, _T)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:201:45: error: expected unqualified-id before '&&' token enable_if_t<_MDSPAN_TRAIT(is_empty, _U) && !_MDSPAN_TRAIT(is_empty, _T)>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:239:5: error: 'enable_if_t' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && _MDSPAN_TRAIT(is_empty, _U)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:239:17: error: 'is_empty' was not declared in this scope enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && _MDSPAN_TRAIT(is_empty, _U)>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:239:17: error: template argument 3 is invalid enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && _MDSPAN_TRAIT(is_empty, _U)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:47:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/no_unique_address.hpp:239:45: error: expected unqualified-id before '&&' token enable_if_t<_MDSPAN_TRAIT(is_empty, _T) && _MDSPAN_TRAIT(is_empty, _U)>> ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:48:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:60:25: error: 'constexpr' does not name a type _MDSPAN_INLINE_VARIABLE constexpr struct ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:60:25: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:62:3: error: '__construct_partially_static_array_from_sizes_tag' does not name a type } __construct_partially_static_array_from_sizes_tag = {}; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:68:32: error: expected unqualified-id before 'using' template using __repeated_with_idxs = _T; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:81:65: error: 'dynamic_extent' was not declared in this scope template > ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:82:47: error: expected '>' before '<' token class _IdxsSeq = make_index_sequence<_ValsSeq::size()>> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:83:29: error: expected unqualified-id before ';' token struct __standard_layout_psa; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:89:8: error: '__standard_layout_psa' is not a class template struct __standard_layout_psa< ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:90:15: error: 'integer_sequence' was not declared in this scope _Tag, _T, integer_sequence<_T, __value, __values_or_sentinals...>, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:90:70: error: expected ';' before ',' token _Tag, _T, integer_sequence<_T, __value, __values_or_sentinals...>, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:234:8: error: '__standard_layout_psa' is not a class template struct __standard_layout_psa< ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:235:15: error: 'integer_sequence' was not declared in this scope _Tag, _T, integer_sequence<_T, __sentinal, __values_or_sentinals...>, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:235:73: error: expected ';' before ',' token _Tag, _T, integer_sequence<_T, __sentinal, __values_or_sentinals...>, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:363:8: error: '__standard_layout_psa' is not a class template struct __standard_layout_psa<_Tag, _T, integer_sequence<_T>, __sentinal, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:363:40: error: 'integer_sequence' was not declared in this scope struct __standard_layout_psa<_Tag, _T, integer_sequence<_T>, __sentinal, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:363:60: error: expected ';' before ',' token struct __standard_layout_psa<_Tag, _T, integer_sequence<_T>, __sentinal, ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:435:28: error: expected template-name before '<' token : __standard_layout_psa< ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:435:28: error: expected '{' before '<' token /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:435:28: error: expected unqualified-id before '<' token /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:475:9: error: expected nested-name-specifier before '__base_t' using __base_t = ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:478:32: error: 'constexpr' does not name a type MDSPAN_FORCE_INLINE_FUNCTION constexpr __partially_static_sizes( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:478:32: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:482:9: error: '__base_t' has not been declared using __base_t::__base_t; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:486:3: error: 'constexpr' does not name a type constexpr __partially_static_sizes() noexcept : __base_t() { } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:486:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:489:32: error: 'constexpr' does not name a type MDSPAN_FORCE_INLINE_FUNCTION constexpr __partially_static_sizes_tagged< ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/standard_layout_static_array.hpp:489:32: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:61:8: error: 'constexpr' does not name a type static constexpr std::false_type _check_compatible_extents( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:61:8: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:65:13: error: 'integral_constant' in namespace 'std' does not name a template type static std::integral_constant< ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:86:80: error: '>>' should be '> >' within a nested template argument list detail::__partially_static_sizes_tagged> ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:90:9: error: expected nested-name-specifier before 'index_type' using index_type = ptrdiff_t; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:92:9: error: expected nested-name-specifier before '__storage_t' using __storage_t = detail::__partially_static_sizes_tagged; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:93:9: error: expected nested-name-specifier before '__base_t' using __base_t = detail::__no_unique_address_emulation<__storage_t>; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:98:3: error: '__storage_t' does not name a type __storage_t& __storage() noexcept { return this->__base_t::__ref(); } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:100:3: error: 'constexpr' does not name a type constexpr __storage_t const& __storage() const noexcept { return this->__base_t::__ref(); } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:100:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:104:10: error: 'constexpr' does not name a type static constexpr ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:104:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:115:3: error: 'constexpr' does not name a type constexpr bool _eq_impl(std::experimental::extents, false_type, index_sequence) const noexcept { return false; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:115:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/fixed_layout_impl.hpp:50:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/layout_right.hpp:47, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/basic_mdspan.hpp:48, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:48, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:118:3: error: 'constexpr' does not name a type constexpr bool _eq_impl( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:118:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:129:3: error: 'constexpr' does not name a type constexpr bool _not_eq_impl(std::experimental::extents, false_type, index_sequence) const noexcept { return true; } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:129:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:132:3: error: 'constexpr' does not name a type constexpr bool _not_eq_impl( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:132:3: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:141:26: error: 'constexpr' does not name a type MDSPAN_INLINE_FUNCTION constexpr explicit ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:141:26: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:151:10: error: 'constexpr' does not name a type static constexpr size_t rank() noexcept { return sizeof...(Extents); } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:151:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:153:10: error: 'constexpr' does not name a type static constexpr size_t rank_dynamic() noexcept { return _MDSPAN_FOLD_PLUS_RIGHT((int(Extents == dynamic_extent)), /* + ... + */ 0); } ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:153:10: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:158:36: error: 'constexpr' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED constexpr extents() noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:158:36: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:159:36: error: 'constexpr' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED constexpr extents(extents const&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:159:36: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:160:36: error: 'constexpr' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED constexpr extents(extents&&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:160:36: note: C++11 'constexpr' only available with -std=c++11 or -std=gnu++11 /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:161:100: error: expected ';' at end of member declaration MDSPAN_INLINE_FUNCTION_DEFAULTED _MDSPAN_CONSTEXPR_14_DEFAULTED extents& operator=(extents const&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:161:102: error: 'noexcept' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED _MDSPAN_CONSTEXPR_14_DEFAULTED extents& operator=(extents const&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:162:93: error: expected ',' or '...' before '&&' token MDSPAN_INLINE_FUNCTION_DEFAULTED _MDSPAN_CONSTEXPR_14_DEFAULTED extents& operator=(extents&&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:162:95: error: expected ';' at end of member declaration MDSPAN_INLINE_FUNCTION_DEFAULTED _MDSPAN_CONSTEXPR_14_DEFAULTED extents& operator=(extents&&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:162:97: error: 'noexcept' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED _MDSPAN_CONSTEXPR_14_DEFAULTED extents& operator=(extents&&) noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:163:45: error: expected ';' at end of member declaration MDSPAN_INLINE_FUNCTION_DEFAULTED ~extents() noexcept = default; ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:163:47: error: 'noexcept' does not name a type MDSPAN_INLINE_FUNCTION_DEFAULTED ~extents() noexcept = default; ^ In file included from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/accessor_basic.hpp:46:0, from /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/mdspan:46, from /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:2: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: 'enable_if' in namespace 'std' does not name a template type MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: expected '>' before '<' token MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: expected unqualified-id before '{' token MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: expected unqualified-id before ',' token MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: expected unqualified-id before ',' token MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/experimental/__p0009_bits/extents.hpp:165:3: error: expected unqualified-id before ')' token MDSPAN_TEMPLATE_REQUIRES( ^ /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:14:1: error: expected '}' at end of input } ^ /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:14:1: error: expected unqualified-id at end of input /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:14:1: error: expected '}' at end of input /home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/test_package.cpp:14:1: error: expected '}' at end of input make[2]: *** [CMakeFiles/test_package.dir/test_package.cpp.o] Error 1 make[1]: *** [CMakeFiles/test_package.dir/all] Error 2 make: *** [all] Error 2 mdspan/0.1.0: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/mdspan/0.1.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib ERROR: mdspan/0.1.0 (test package): Error in build() method, line 12 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/BuildSingleReference/conan-center-index/recipes/mdspan/all/test_package/build/dfae4d6ba682b8d9c5630c4c912db585c2a46c64' '--' '-j3'