noble (7) assert.h.7posix.gz

Provided by: manpages-posix-dev_2017a-2_all bug

PROLOG
       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
       assert.h — verify program assertion


SYNOPSIS
       #include <assert.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.1‐2017 defers to the ISO C standard.

       The <assert.h> header shall define the assert() macro. It refers to the macro NDEBUG which is not defined
       in the header. If NDEBUG is defined as a macro name before the inclusion of  this  header,  the  assert()
       macro shall be defined simply as:

           #define assert(ignore)((void) 0)

       Otherwise, the macro behaves as described in assert().

       The  assert()  macro  shall be redefined according to the current state of NDEBUG each time <assert.h> is
       included.

       The assert() macro shall be implemented as a macro, not  as  a  function.  If  the  macro  definition  is
       suppressed in order to access an actual function, the behavior is undefined.

       The following sections are informative.


APPLICATION USAGE
       None.


RATIONALE
       None.


FUTURE DIRECTIONS
       None.


SEE ALSO
       The System Interfaces volume of POSIX.1‐2017, assert()


       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 .