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astg.h (275B)

      1 typedef struct ast_node ast_node;
      2 
      3 typedef enum op {
      4 	ADD = 0,
      5 	SUB = 1,
      6 	MUL = 2,
      7 	DIV = 3,
      8 } op;
      9 
     10 typedef struct ast_node {
     11 	op operation;
     12 	int realLeft;
     13 	int realRight;
     14 	ast_node *right;
     15 	ast_node *left;
     16 } ast_node;
     17 
     18 int exec(ast_node *exp);
     19 void freeAst(ast_node *head);