STDBOOL(3) BSD Library Functions Manual STDBOOL(3)NAME
stdbool -- standard boolean types
SYNOPSIS
#include <stdbool.h>
DESCRIPTION
The <stdbool.h> header defines four macros:
1. bool, which expands to _Bool;
2. true, which expands to the integer constant 1;
3. false, which expands to the integer constant 0; and
4. __bool_true_false_are_defined, which expands to the constant 1.
The ability to undefine and redefine the macros bool, true, and false is an obsolescent feature that may be withdrawn in a future version of
a standard.
SEE ALSO stdint(3)STANDARDS
The <stdbool.h> header conforms to ISO/IEC 9899:1999 (``ISO C99'') and IEEE Std 1003.1-2001 (``POSIX.1'').
HISTORY
The <stdbool.h> header was first introduced in NetBSD 1.6.
BSD March 21, 2010 BSD
Check Out this Related Man Page
STDDEF(3) BSD Library Functions Manual STDDEF(3)NAME
stddef -- standard type definitions
SYNOPSIS
#include <stddef.h>
DESCRIPTION
The <stddef.h> header defines the following types and macros:
1. ptrdiff_t, a signed integer type of the result of subtracting two pointers;
2. size_t, an unsigned integer type of the result of the sizeof() operator;
3. wchar_t, an integer type whose range of values can represent distinct wide-character codes for all members of the largest character
set specified among the supported locales: the null character has the code value 0 and each member of the character set has a code
value equal to its value when used as the lone character in an integer character constant;
4. NULL, which expands to an implementation-defined null pointer constant; and
5. offsetof(), a macro that expands to an integer constant as described in offsetof(3).
Some of the described types and macros may appear also in other headers.
SEE ALSO offsetof(3), stdlib(3), unistd(3)STANDARDS
As described here, the <stddef.h> header conforms to ISO/IEC 9899:1999 (``ISO C99'') and IEEE Std 1003.1-2001 (``POSIX.1''). Some of the
types and macros conform to earlier standards such as ANSI X3.159-1989 (``ANSI C89'').
HISTORY
In the current form the <stddef.h> header was introduced in NetBSD 0.8, the first official release of NetBSD. Some definitions such as NULL
were first introduced already in the <nsys/param.h> header of Version 4 AT&T UNIX.
BSD April 10, 2011 BSD
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==============================================================================
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