stdbool.h(0p) — Linux manual page

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

PROLOG         top

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

NAME         top

       stdbool.h — boolean type and values

SYNOPSIS         top

       #include <stdbool.h>

DESCRIPTION         top

       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.1‐2017 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         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       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         top

       None.

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  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.opengroup.org/unix/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 .

IEEE/The Open Group               2017                     stdbool.h(0P)

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