Expression must be arithmetic or unscoped enum

line 143 if (10 == 
Battery0.BatteryLife());  
//if battery is 
      fully charged
      {


void Battery::BatteryLife()
{
   int a;
   a = count + sount;

}

I'm creating bluetooth product. I made the ObjectName equal to 10 but still get an error "Expression must have arithmetic or unscoped enum type/ Objectname [closed]" in the first if statement. May I ask what needs change. I think I need a arithmetic expression inside the brackets on the ObjectName