remove unnecessary check for NULL pointer.

[mirror_edk2.git] / Tools / CCode / Source / Pccts / support / rexpr / rexpr.h

#define Atom	256		/* token Atom (an impossible char value) */\r
#define Epsilon	257		/* epsilon arc (an impossible char value) */\r
\r
/* track field must be same for all node types */\r
typedef struct _a {\r
					struct _a *track;	/* track mem allocation */\r
					int label;\r
					struct _a *next;\r
					struct _n *target;\r
				} Arc, *ArcPtr;\r
\r
typedef struct _n {\r
					struct _n *track;\r
					ArcPtr arcs, arctail;\r
				} Node, *NodePtr;\r
\r
typedef struct	{\r
					NodePtr left,\r
						 	right;\r
				} Graph, *GraphPtr;\r
\r
#ifdef __USE_PROTOS\r
int rexpr( char *expr, char *s );\r
int match( NodePtr automaton, char *s );\r
#else\r
int rexpr();\r
int match();\r
#endif\r
\r
\r