char/int help

This is a discussion on char/int help within the C++ Programming forums, part of the General Programming Boards category; I'm fairly new to C++ and am making a small calculator just to get the hang of things. I was ...

  1. #1
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    char/int help

    I'm fairly new to C++ and am making a small calculator just to get the hang of things.
    I was wondering how to send an errror message when someone enters a letter instead of a number.
    E.G When it says "enter your first number here:" and you enter "g" it sends an error.
    I know how to send the message but I dont know how to do the other bit.

  2. #2
    Just Lurking Dave_Sinkula's Avatar
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    Read as a string and (attempt to) convert.
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

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