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Ok, I want to make a calculator, but every example of a calculator is the same "enter two numbers to have them added" or whatever, I want it to be just so i can keep adding numbers until i want to stop, like a real calculator. I don't want exact code I just want to know what I should be looking at.
You should create a loop. As long as you don't want to stop, provide input, the function you want to do (+, -, *, /, etc.) and perform the operation. The result you use for the next iteration of the loop. Did you follow?
Your calculator object just needs to have data members representing:
# last input
# last operation (ie + - * / )
# current value
Then when you hit = it performs the last operation on the last input and the current value and updates current value. That is how a calculator works. Not with a loop.