#include <mach/arm/boolean.h> also included by <mach/mach.h>

mach/arm/boolean.h

1 typedef

typedefboolean_t

typedef int boolean_t
CMU/MIT Mach reference · manual page · © Carnegie Mellon
Defined values:
TRUEThe kernel allocates the region in the next unused space that is sufficient within the address space. The kernel returns the starting address actually used in address.
FALSEThe kernel allocates the region starting at address unless that space is already allocated.