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 IEEE Std 1003.1-2001 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is an obsolescent feature and may be withdrawn in a future
version.
SEE ALSO
None.
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 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 .
