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stdbool.h(7posix)


NAME

   stdbool.h --- boolean type and values

SYNOPSIS

   #include <stdbool.h>

DESCRIPTION

   The functionality described on this reference page is aligned with  the
   ISO C  standard.  Any  conflict between the requirements described here
   and the ISO C standard is unintentional. This  volume  of  POSIX.12008
   defers to the ISO C standard.

   The <stdbool.h> header shall define the following macros:

   bool    Expands to _Bool.

   true    Expands to the integer constant 1.

   false   Expands to the integer constant 0.

   __bool_true_false_are_defined
           Expands to the integer constant 1.

   An application may undefine and then possibly redefine the macros bool,
   true, and false.

   The following sections are informative.

APPLICATION USAGE

   None.

RATIONALE

   None.

FUTURE DIRECTIONS

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

SEE ALSO

   None.

COPYRIGHT

   Portions  of  this text are reprinted and reproduced in electronic form
   from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
   --  Portable  Operating  System  Interface (POSIX), The Open Group Base
   Specifications  Issue  7,  Copyright  (C)  2013  by  the  Institute  of
   Electrical and Electronics Engineers, Inc and The Open Group.  (This is
   POSIX.1-2008 with the 2013 Technical Corrigendum  1  applied.)  In  the
   event of any discrepancy between this version and the original IEEE and
   The Open Group Standard, the original IEEE and The Open Group  Standard
   is  the  referee document. The original Standard can be obtained online
   at http://www.unix.org/online.html .

   Any typographical or formatting errors that appear  in  this  page  are
   most likely to have been introduced during the conversion of the source
   files   to   man   page   format.   To   report   such   errors,    see
   https://www.kernel.org/doc/man-pages/reporting_bugs.html .



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