abCalc/ops/abCOpAsin.c

53 lines
862 B
C

/*
abCOpAsin.c
By: Jeremy Rand
*/
#include <math.h>
#include <stdio.h>
#include "abCError.h"
#include "abCStack.h"
#include "expr/abCExpr.h"
#include "expr/abCExpReal.h"
#include "ops/abCOp.h"
#include "ops/abCOpAsin.h"
#define ASIN_NAME "ASIN"
static void asinExecute(void);
void abCalcOpAsinInit(void)
{
abCalcOpRegister(ASIN_NAME, asinExecute);
}
void asinExecute(void)
{
abCalcExpr result;
AB_CALC_OP_ONE_ARG(ASIN_NAME);
if (expr->type != abCalcExprTypeReal) {
abCalcRaiseError(abCalcBadArgTypeError, ASIN_NAME);
return;
}
if ((expr->u.real < -1.0) ||
(expr->u.real > 1.0)) {
abCalcRaiseError(abCalcComplexResultError, ASIN_NAME);
return;
}
abCalcExprRealSet(&result, asin(expr->u.real));
abCalcStackExprPop(NULL);
abCalcStackExprPush(&result);
}