abCalc/ops/abCOp.h

42 lines
1.1 KiB
C

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