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C++: Difference between revisions
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A lot of the stdlib classes require '''new''' and '''delete''' to be implemented in your OS. File access requires your OS to support reading and wrapping. Console functions require your OS to already have working console I/O.
Porting the C++ stdlib (like porting the [[C_Library|C Standard Library]]) does not automatically make your OS able to read from and write to the disk or get data straight from the keyboard. These are simply wrappers around your OS' functions, and must be implemented by in your kernel.
Note that it is generally not a good idea to port the entire stdlib to your kernel, although it is reasonable to port a few class templates, such as <tt>std::vector</tt> and <tt>std::string</tt> if you wish to. As for your user applications: the more the merrier! :)
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If you want Exceptions, RTTI, new and delete altogether, you should use [[libgcc]] and libsupc++. libgcc contains the unwinder (for exceptions), while libsupc++ contains the C++ support.
You may run into problems with libsupc++, but there are [[GCC_and_Libc++|alternative libraries]].
== Optimizations ==
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