Boolean

Boolean type and constants. More...

Macros
#define	false   0
#define	FALSE   0
#define	true   1
#define	TRUE   0xFF

Typedefs
typedef unsigned char	bool

Detailed Description

Boolean type and constants.

Warning

TRUE is 0xFF, not 1! This matches SNES convention where bit patterns are often used. Always compare with != FALSE rather than == TRUE.

if (flag) { }         // Good
if (flag != FALSE) {} // Good
if (flag == TRUE) {}  // Bad! Will fail for non-0xFF truthy values

Macro Definition Documentation

false

#define false   0

FALSE

#define FALSE   0

true

#define true   1

TRUE

#define TRUE   0xFF

Typedef Documentation

bool

typedef unsigned char bool