Bonjour Jean Louis,
On 17.08.2026 08:45, Jean Louis Faucher wrote:
We are currently limited to C++ 11.
C++17 was standardized in 2017, and all of the major compilers we support have had full C++17
support for several years.
What about increasing the minimum required C++ standard to C++17?
# Set compiler and linker flags common to all build environments
# current trunk uses the C++ "override" keyword, which requires C++11
if (CMAKE_VERSION VERSION_LESS "3.1")
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} *-std=gnu++11*")
endif ()
else ()
*set (CMAKE_CXX_STANDARD 11)*
endif ()
The minimum compiler versions for C++17 support are approximately:
*Compiler Minimum Year C++17 option Comment*
* version*
Clang (Linux) 5.0 2017 -std=c++17 C++17 language support
completed in Clang 5.
Apple Clang 10.0 2018 -std=c++17 Xcode 10 added important missing C++17 library
headers.
GCC 7.1 2017 -std=c++17 C++17 language support is
complete in GCC 7.1;
GCC 12.0 2022 however, the C++17 library was not fully complete
until GCC 12.0.
MSVC (cl) 19.14 2018 /std:c++17 MSVC toolset shipped with
Visual Studio 2017 15.7.
So the oldest relevant compiler versions are now 8–9 years old.
So this would still allow for addressing older operating system versions which
is great.
Would there be any objection to bumping CMAKE_CXX_STANDARD from 11 to 17?
No, please go ahead, as far as I am concerned it is a great idea!
Best regards
---rony
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