I think there's a bug in <sys/types.h> in that B_TRUE and B_FALSE
disappear from the namespace if you request XOPEN_ or POSIX compliance
with extensions via defines such as:
-D_XOPEN_SOURCE=500 -D__EXTENSIONS__
But my understanding of what the standards say should happen here is
fuzzy.
I have some code which I need to extend to use the libxnet version of
recvmsg/sendmsg -- specifically the variant of struct msgheader which
contains msg_control/msg_controllen.
Other parts of that code use B_TRUE/B_FALSE for booleans.
But <sys/types.h> says:
#if defined(__XOPEN_OR_POSIX)
typedef enum { _B_FALSE, _B_TRUE } boolean_t;
#else
typedef enum { B_FALSE, B_TRUE } boolean_t;
#endif /* defined(__XOPEN_OR_POSIX) */
Is there any reason why this shouldn't be:
#if defined(__XOPEN_OR_POSIX) && !defined(__EXTENSIONS__)
typedef enum { _B_FALSE, _B_TRUE } boolean_t;
#else
typedef enum { B_FALSE, B_TRUE } boolean_t;
#endif /* defined(__XOPEN_OR_POSIX) */
- Bill
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