Problem with while loop: does not work or

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Problem with while loop: does not work or

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#1 by (5 votes)

2

The or does not work in this while loop:

#include <iostream>
using namespace std;
main ()
{
    char s;
    do{
        cout<<"\n\t\t> Ingrese el sexo: ";
        cin>>s;
    }while (s!='f' || s!='m');
    return 0;
}

c++

asked by Malthael 23.08.2016 в 18:20

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1 answer

Problem with accents in Regex Format 001-000001 in a textbox (editbox)

score 5 · Accepted Answer

It does not work for you because instead of || (OR) you should use & & amp; (AND). Using OR the condition of the while will always be true because when 'f' will not be 'm'; -)

#include <iostream>
using namespace std;
main ()
{
    char s;
    do{
            cout << "\n\t\t> Ingrese el sexo: ";
                cin >> s;
    }while (s!='f' && s!='m');
    return 0;
}