78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
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abCOpDiv.c
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By: Jeremy Rand
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*/
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#include <stdio.h>
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#include "abCError.h"
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#include "abCStack.h"
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#include "expr/abCExpr.h"
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#include "expr/abCExpReal.h"
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#include "expr/abCExprInt.h"
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#include "ops/abCOp.h"
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#include "ops/abCOpDiv.h"
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#define DIV_NAME "/"
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static void divExecute(void);
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void abCalcOpDivInit(void)
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{
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abCalcOpRegister(DIV_NAME, divExecute);
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}
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void divExecute(void)
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{
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abCalcExpr result;
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char expr1Real = 0;
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char expr2Real = 0;
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AB_CALC_OP_TWO_ARGS(DIV_NAME);
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if (expr1->type == abCalcExprTypeReal) {
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expr1Real = 1;
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if (expr1->u.real == 0.0) {
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abCalcRaiseError(abCalcInfiniteResultError, DIV_NAME);
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return;
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}
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} else if (expr1->type == abCalcExprTypeInt) {
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if (expr1->u.integer == 0l) {
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abCalcRaiseError(abCalcInfiniteResultError, DIV_NAME);
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return;
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}
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} else {
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abCalcRaiseError(abCalcBadArgTypeError, DIV_NAME);
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return;
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}
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if (expr2->type == abCalcExprTypeReal) {
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expr2Real = 1;
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} else if (expr2->type != abCalcExprTypeInt) {
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abCalcRaiseError(abCalcBadArgTypeError, DIV_NAME);
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return;
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}
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if ((expr1Real) && (expr2Real)) {
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abCalcExprRealSet(&result, expr2->u.real / expr1->u.real);
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} else {
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if (expr1Real) {
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abCalcExprIntSet(&result, expr2->u.integer / (abCalcIntType)expr1->u.real);
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} else if (expr2Real) {
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abCalcExprIntSet(&result, (abCalcIntType)expr2->u.real / expr1->u.integer);
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} else {
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abCalcExprIntSet(&result, expr2->u.integer / expr1->u.integer);
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}
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}
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abCalcStackExprPop(NULL);
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abCalcStackExprPop(NULL);
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abCalcStackExprPush(&result);
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}
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