pointers to structs

[Lindsay F. Marshall]

<>
    What is the position as regards a) portability, and b) the "standard"
on using the following feature of C :

    .
    .
    struct STYPE *t;
    .
    .

where the size and shape of STYPE have not been defined and the elements
of t are NEVER accessed - the normal use is that t is assigned a value
from a function call and is then passed to another function, the contents
of the structure are not releveant. This certainly works
on the compilers I have tried it on, but is it "correct"?? (If it is, it's a
tremendous way of reducing the number of include files one needs!!)
Please mail replies if possible, as not all the news has the strength to reach
this far! I will summarise if it is worth it.

Lindsay F. Marshall - Computing Lab., U of Newcastle upon Tyne
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