abCalc/ops/abCOpAtan.c

47 lines
711 B
C

/*
abCOpAtan.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/abCOpAtan.h"
#define ATAN_NAME "ATAN"
static void atanExecute(void);
void abCalcOpAtanInit(void)
{
abCalcOpRegister(ATAN_NAME, atanExecute);
}
void atanExecute(void)
{
abCalcExpr result;
AB_CALC_OP_ONE_ARG(ATAN_NAME);
if (expr->type != abCalcExprTypeReal) {
abCalcRaiseError(abCalcBadArgTypeError, ATAN_NAME);
return;
}
abCalcExprRealSet(&result, atan(expr->u.real));
abCalcStackExprPop(NULL);
abCalcStackExprPush(&result);
}