// File: boolean.h. Header file that defines boolean type 
// boolean_t and constants FALSE and TRUE

#ifndef BOOLEAN_T
#define BOOLEAN_T

// If compiler defines FALSE and TRUE, undefine them

#ifdef FALSE
#undef FALSE
#endif

#ifdef TRUE
#undef TRUE
#endif

// Definitions of boolean type boolean_t and boolean constants
#define boolean_t int
const int FALSE = 0;
const int TRUE  = 1;

#endif