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    SubjectRe: C++ and the kernel
    * Richard B. Johnson ( wrote:
    > I would like to rewrite the kernel in FORTRAN because this was
    > one of the first languages I learned.
    > Seriously, the kernel MUST be written in a procedural language.
    > It is the mechanism by which something is accomplished that defines
    > an operating system kernel.
    > C++ is an object-oriented language, in fact the opposite of a
    > procedural language. It is not suitable.


    There are many places in the kernel that are actually very OO - look at
    filesystems for example. The super_operations sturcture is in effect a
    virtual function table.

    Sure making every file an object is probably OTT; but large scale things
    like a filesystem, a network device or the like probably actually fit
    very well.

    Sure, there are a lot of features of C++ to stay clear of - exception
    handling probably being one of them, and I wouldn't let the C++ stuff
    anywhere near the memory management code.

    Point being that it is a case of using the write tool for the job. C++
    douesn't add any extra overhead just by calling it C++ and not using any
    of the features; careful use of the features where appropriate does no
    harm and might actually make the code cleaner, and possibly more

    I will agree going head in and just throwing C++ at it is a bad thing.


    ---------------- Have a happy GNU millennium! ----------------------
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