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Date: Mon, 29 Oct 2012 11:30:12 +0100
From: Dimitry Andric <dim@FreeBSD.org>
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To: Erik Cederstrand <erik@cederstrand.dk>
Subject: Re: opensolaris B_TRUE and B_FALSE
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Cc: Ian Lepore <freebsd@damnhippie.dyndns.org>,
 FreeBSD Hackers <hackers@freebsd.org>
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On 2012-10-29 09:12, Erik Cederstrand wrote:
> Den 29/10/2012 kl. 00.24 skrev Ian Lepore <freebsd@damnhippie.dyndns.org>:
>> Look further up in sys/cddl/compat/opensolaris/sys/types.h, they're also
>> defined (as macros rather than enum) in the KERNEL case.  They're also
>> defined (as enum) in sys/gnu/fs/xfs/xfs_types.h.  (Once again, SlickEdit
>> pays for itself by answering with one right-click a question that would
>> have been a pain to use grep for.)
>
> The code in the report is /sbin/zpool, so I assume it's not KERNEL code. As I wrote in my email, I can see B_TRUE and B_FALSE are defined as boolean_t in sys/cddl/compat/opensolaris/sys/types.h But I can't see that boolean_t is defined anywhere in the included headers as long as KERNEL is not defined.

In sys/cddl/compat/opensolaris/sys/types.h, there is:

   typedef enum { B_FALSE, B_TRUE }        boolean_t;

This line defines the boolean_t type.  Maybe the type itself is never
used, but only the enum values.  Sort of like a an anonymous enum in C++.