c++ using loops

Calculator Program Write a program to input three values, two floats and an operator print out what were read and the resulting evaluation. The operators to handle are +, - . / and ^. The floats are one or more digit in length. The last input is sentinel value 0 + 0; Read a float, char, float for input. cin >> vi>>opchar >> v2; Input File: SimpleCal6.txt Example input: 78.2 + 9.0 Example Output: 78.2 + 9,0 = 87.2 Due Next Monday source pgon & input file