Calculator from Bjarne Stroustrup's book

This is a discussion on Calculator from Bjarne Stroustrup's book within the C++ Programming forums, part of the General Programming Boards category; I'm currently reading Bjarne Stroustrup's book:"C++ Programming Language - third edition". In chapter 6, he introduce a calculator program and ...

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    Calculator from Bjarne Stroustrup's book

    I'm currently reading Bjarne Stroustrup's book:"C++ Programming Language - third edition". In chapter 6, he introduce a calculator program and I don't fully understand the program yet (but soon - I'm still quite the beginner in programming). I have the feeling that this is a RPN calculator, but I'm not sure, that is why I want confirmation whether it is one.

    Here is the code from the book: calc.cpp

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    The very first sentence in chapter 6:
    Statements and expressions are introduced by presenting a desk calculator program that provides
    the four standard arithmetic operations as infix operators on floating-point numbers.
    So it's not RPN.
    The cost of software maintenance increases with the square of the programmer's creativity. - Robert D. Bliss

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