Question

#include #include using namespace std; //Implement function lookUpFirstNeg() here int main() { double *dd, *ddAns; //allocate memory for at least 3 double elements //ensure all elements have been initialized //call function, replace 0 with the proper number of elements pointed to by dd ddAns = lookUpFirstNeg(dd, 0); if(ddAns == NULL) cout << "No negatives found.\n"; else cout << "First negative value is:" << ddAns << endl; //properly deallocate memory allocated above return 0; }

Answer 1

#include <iostream>

using namespace std;

double *lookUpFirstNeg (double * arr, int n){

double *ptr = arr;

for(int i = 0; i<n ; ++i){

if(*(ptr) < 0)

return ptr;

ptr = ptr + 1;

}

return NULL;

}

int main() {

double *dd, *ddAns;

dd = new double[5];

dd[0] = 12.3;

dd[1] = 90;

dd[2] = -7;

dd[3] = 20;

dd[4] = -100;

ddAns = lookUpFirstNeg(dd, 5);

if(ddAns == NULL)

cout << "No negatives found.\n";

else

cout << "First negative value is:" << *ddAns << endl;

delete dd;

return 0;

}

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