NAME

boolean − simple TRUE/FALSE type for C/C++

SYNOPSIS

#include <codelibs/boolean.h>
 typedef boolean int;
#define TRUE 1
#define FALSE 0

DESCRIPTION

This header file defines the type boolean and the values TRUE and FALSE. They may be safely used by C++ or C code. The boolean values of TRUE and FALSE are defined as macros rather enums since the return value from arithmetic test expressions is an “int” and not a special boolean value for both C and C++. 

This boolean type is intended mostly for writing more readable, and hence more maintainable code. 

EXAMPLES

#include <codelibs/boolean.h>
 // standard readable routine to determine if an integer is ODD or EVEN
//
boolean is_odd(int val)
{
    return (val & 0x01) ? TRUE : FALSE;
}
 // typical C version, which also works as expected with type boolean:
//
boolean is_odd_too(int val)
{
    return val & 0x01;
}
 

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