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Diffstat (limited to 'Help/dev')
| -rw-r--r-- | Help/dev/source.rst | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/Help/dev/source.rst b/Help/dev/source.rst index 16a9252..b40a884 100644 --- a/Help/dev/source.rst +++ b/Help/dev/source.rst @@ -23,20 +23,18 @@ format only a subset of files, such as those that are locally modified. C++ Subset Permitted ==================== -CMake supports compiling as C++98 in addition to C++11 and C++14. -In order to support building on older toolchains some constructs -need to be handled with care: +CMake requires compiling as C++11 or above. However, in order to support +building on older toolchains some constructs need to be handled with care: -* Use ``CM_AUTO_PTR`` instead of ``std::auto_ptr``. +* Do not use ``CM_AUTO_PTR`` or ``std::auto_ptr``. - The ``std::auto_ptr`` template is deprecated in C++11. We want to use it - so we can build on C++98 compilers but we do not want to turn off compiler - warnings about deprecated interfaces in general. Use the ``CM_AUTO_PTR`` - macro instead. + The ``std::auto_ptr`` template is deprecated in C++11. The ``CM_AUTO_PTR`` + macro remains leftover from C++98 support until its uses can be ported to + ``std::unique_ptr``. Do not add new uses of the macro. * Use ``CM_EQ_DELETE;`` instead of ``= delete;``. - Defining functions as *deleted* is not supported in C++98. Using + Older C++11 compilers do not support deleting functions. Using ``CM_EQ_DELETE`` will delete the functions if the compiler supports it and give them no implementation otherwise. Calling such a function will lead to compiler errors if the compiler supports *deleted* functions and linker |