45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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abCOp.h
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By: Jeremy Rand
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*/
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#ifndef ABCOP_H
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#define ABCOP_H
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#define AB_CALC_OP_ONE_ARG(opName) \
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abCalcExpr *expr; \
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if (abCalcStackNumItems() < 1) { \
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abCalcRaiseError(abCalcTooFewArgsError, opName); \
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return; \
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} \
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expr = abCalcStackExprAt(0);
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#define AB_CALC_OP_TWO_ARGS(opName) \
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abCalcExpr *expr1, *expr2; \
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if (abCalcStackNumItems() < 2) { \
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abCalcRaiseError(abCalcTooFewArgsError, opName); \
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return; \
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} \
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expr1 = abCalcStackExprAt(0); \
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expr2 = abCalcStackExprAt(1);
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typedef struct abCalcOp {
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char *name;
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void (*execute)(void);
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} abCalcOp;
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void abCalcOpInit(void);
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void abCalcOpRegister(char *name, void (*execute)(void));
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abCalcOp *abCalcOpLookup(char *name);
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abCalcOp *abCalcOpNth(int n);
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int abCalcOpNumOps(void);
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#endif
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