stdbool(3) - NetBSD Manual Pages

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STDBOOL(3)              NetBSD 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     an obsolescent feature that may be withdrawn in a future version of a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 10.1                     March 21, 2010                     NetBSD 10.1