assert man page on ElementaryOS

Man page or keyword search:  
man Server   4994 pages
apropos Keyword Search (all sections)
Output format
ElementaryOS logo
[printable version]

ASSERT(3)		   Linux Programmer's Manual		     ASSERT(3)

NAME
       assert - abort the program if assertion is false

SYNOPSIS
       #include <assert.h>

       void assert(scalar expression);

DESCRIPTION
       If  the	macro  NDEBUG  was  defined  at the moment <assert.h> was last
       included, the macro assert() generates no code, and hence does  nothing
       at all.	Otherwise, the macro assert() prints an error message to stan‐
       dard error and terminates the program by calling abort(3) if expression
       is false (i.e., compares equal to zero).

       The  purpose  of	 this macro is to help the programmer find bugs in his
       program.	  The  message	"assertion  failed  in	file  foo.c,  function
       do_bar(), line 1287" is of no help at all to a user.

RETURN VALUE
       No value is returned.

CONFORMING TO
       POSIX.1-2001,  C89,  C99.  In C89, expression is required to be of type
       int and undefined behavior results if it is not, but in C99 it may have
       any scalar type.

BUGS
       assert()	 is implemented as a macro; if the expression tested has side-
       effects, program behavior will be different depending on whether NDEBUG
       is defined.  This may create Heisenbugs which go away when debugging is
       turned on.

SEE ALSO
       abort(3), assert_perror(3), exit(3)

COLOPHON
       This page is part of release 3.54 of the Linux  man-pages  project.   A
       description  of	the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

GNU				  2002-08-25			     ASSERT(3)
[top]

List of man pages available for ElementaryOS

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
...................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net