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STDBOOL(3)                 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     an obsolescent feature that may be withdrawn in a future version of a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.

NetBSD 10.99                    March 21, 2010                    NetBSD 10.99