[lkml]   [2000]   [Jan]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH] 2.3.41 - cleanup file_operations structs
    James Manning <> writes:
    > [ Sunday, January 30, 2000 ] Ingo Oeser wrote:
    > > This feature is not ANSI-C, so it is gcc specific.
    > Yup, and since the kernel is gcc-specific anyway, we might as well
    > get some benefit from it :)

    In cases where standard C does not suffice, I would agree. But C99
    also has designated initializers, with a different syntax from gcc:

    gcc-style: struct my_struct foo = { my_member: 42 };
    C99-style: struct my_struct foo = { .my_member = 42 };

    C99 is only a de jure standard at the moment, but this is a feature of
    C99 that will be adopted fairly quickly by other compiler vendors
    (since it is relatively easy to implement). I suspect that eventually
    gcc will recommend the use of C99-style initializers, with gcc-style
    initializers being deprecated (egcs has supported the C99 syntax for a
    while). Adopting gcc-style initializers might seem reasonable now, but
    it could be a pain in five years time when most C programmers are more
    familar with the C99 syntax.

    So could you use a macro instead, such as:

    #define STRUCT_ELEM_INIT(m) m :

    This would avoid the dependency on a gcc-specific feature, and would
    allow automatic conversion to the C99 syntax when that becomes widely

    David Wragg

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:56    [W:0.025 / U:65.416 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site