Typedef for boolean data type.
typedef unsigned bool;
| false | In C++, zero evaluates as false. |
| true | In C++, non-zero evaluates as true. |
Recent additions to ANSI C/C++ standards include a 'bool' datatype whose enumerators are as shown above. In i++, the datatype bool is used in place of bool. Note that 'bool' differs in size amongst compilers.