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- From: karish@forel.stanford.edu (Chuck Karish)
-
- In article <479@longway.TIC.COM> uunet!cbnewsd.ATT.COM!jrstu
- (james.stuhlmacher,ih,) wrote:
- >From: jrstu@cbnewsd.ATT.COM (james.stuhlmacher)
- >
- >I was told by someone that the POSIX standard does not allow
- >including <sys/type.h> in any of the other include files such as
- ><grp.h>. Is this true? I could not find this anywhere in the book.
- >If it is true, why is this the case?
-
- Is this necessary? A portable application that uses <grp.h> had better
- #include <sys/types.h> itself anyway, so it will have type gid_t
- available on an implementation that does not use the nested
- #includes.
-
- There's no specific prohibition in the standard. However, it's a
- non-trivial task to implement the headers in such a way that this is
- safe. The implementation must not surprise the programmer by
- providing an unexpected typedef or function prototype that could
- legally be coded directly into a program.
-
- Chuck Karish karish@mindcraft.com
- (415) 323-9000 karish@forel.stanford.edu
-
- Volume-Number: Volume 17, Number 107
-
-
-