Ignoring extraneous characters in input

[gkayes]

Hey! Working on a project and I need help with ignoring extraneous characters. For the input you have to input a dollar amount (ex. 1000). I need to write in C++ to accept the input but also to either accept or just ignore extraneous characters. I've seen other archived answers but they don't answer my question really. I need it to ignore stuff like "$ 1000" or "$1000" or "1000 dollars" and just accept the numeric characters. Any ideas?

[hungrymouth]

Maybe you could use cin.peek()?

[gkayes]

how so? this is my code

    cout << "What is your loan amount? ($ Amount)";
    cin >> loanamt;

how can I use cin.peek