1stdbool.h(0P)              POSIX Programmer's Manual             stdbool.h(0P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

13       stdbool.h — boolean type and values
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SYNOPSIS

16       #include <stdbool.h>
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DESCRIPTION

19       The functionality described on this reference page is aligned with  the
20       ISO C  standard.  Any  conflict between the requirements described here
21       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2008
22       defers to the ISO C standard.
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24       The <stdbool.h> header shall define the following macros:
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26       bool    Expands to _Bool.
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28       true    Expands to the integer constant 1.
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30       false   Expands to the integer constant 0.
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32       __bool_true_false_are_defined
33               Expands to the integer constant 1.
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35       An application may undefine and then possibly redefine the macros bool,
36       true, and false.
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38       The following sections are informative.
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APPLICATION USAGE

41       None.
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RATIONALE

44       None.
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FUTURE DIRECTIONS

47       The ability to undefine and redefine the macros bool, true,  and  false
48       is an obsolescent feature and may be removed in a future version.
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SEE ALSO

51       None.
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54       Portions  of  this text are reprinted and reproduced in electronic form
55       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
56       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
57       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
58       cal  and  Electronics  Engineers,  Inc  and  The  Open Group.  (This is
59       POSIX.1-2008 with the 2013 Technical Corrigendum  1  applied.)  In  the
60       event of any discrepancy between this version and the original IEEE and
61       The Open Group Standard, the original IEEE and The Open Group  Standard
62       is  the  referee document. The original Standard can be obtained online
63       at http://www.unix.org/online.html .
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65       Any typographical or formatting errors that appear  in  this  page  are
66       most likely to have been introduced during the conversion of the source
67       files to man page format. To report such errors,  see  https://www.ker‐
68       nel.org/doc/man-pages/reporting_bugs.html .
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72IEEE/The Open Group                  2013                        stdbool.h(0P)
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