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21 lines
475 B
C
21 lines
475 B
C
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#ifndef _boolean_h_
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#define _boolean_h_
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#include "list.h"
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typedef enum {
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E_FALSE, E_TRUE, E_UNKNOWN, E_AND, E_OR, E_XOR, E_NOT
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} BoolExprType;
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typedef struct BoolExprStruct {
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BoolExprType type;
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struct BoolExprStruct *subexpr;
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struct BoolExprStruct *next;
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} BoolExpr;
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extern BoolExpr *make_boolean_expr (const List *ls);
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extern BoolExprType eval_bool_expr (const BoolExpr *be);
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extern void print_boolean_expr (const BoolExpr *be);
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#endif /* not _boolean_h_ */
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