Question

In C++, which of the following numbers will evaluate to ture when used in the condition of an if statement:

a. 1

b. -1

c. 100

d. Al of the above

Note : Please provide a solution

Answer 1

Answer is d. All of the above

Reasion : Becouse non zero integers are evaluated as true.

// Here is the code and output which shows the proof.

#include <iostream>
using namespace std;

int main(){
   if(1)
       cout<<" 1 is evaluated true"<<endl;
   else
       cout<<" 1 is evaluated false"<<endl;

   if(-1)
       cout<<" -1 is evaluated true"<<endl;
   else
       cout<<" -1 is evaluated false"<<endl;

   if(100)
       cout<<" 100 is evaluated true"<<endl;
   else
       cout<<" 100 is evaluated false"<<endl;

   return 0;
}

//////============ output =================//

CAwindows system32\cmd.exe 1 is eỤaluated true -1 is evaluatedtrue 100 is evaluated true Press апч keч to continue