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Help with my program 2

+2 votes
asked Nov 15, 2020 by Vicent Cotaina Bertó (360 points)
retagged Nov 15, 2020 by Vicent Cotaina Bertó
I need to make that when user introduces a number with ',' or '.' the number converts into decimal number. I have to do it with switch structure. For now I have the following code:

int main()
{
    int p=0,n=0,k=0,signo=1;
    float positivos[p] = {},negativos[n] = {};
    float valor, SumaPositivos=0, SumaNegativos=0,prueba=0;
    char caracter;
    std::cout.setf(std::ios::fixed);
    std::cout.setf(std::ios::showpoint);
    std::cout.setf(std::ios::showpos); //ios está en el espacio de nombres std y por eso hay que ponerle std antes.
    std::cout.precision(2);
    cout << "Introduce your banking movement: " ;
    while (valor!=0)
    {
        cin.get(caracter);
        switch(caracter)
        {
            case '-':
                signo=-1;
                break;
            case ',':
            case '.':
                break;
            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                prueba=prueba*10+signo*(float (caracter-'0'));
                valor=prueba;
                break;
            case '\n':
                if(prueba>0){
                    positivos[p] = prueba;
                    SumaPositivos+=prueba;
                    p++;
                    std::cout << prueba << "\n";
                }
                else if(prueba<0){
                    negativos[n] = prueba;
                    SumaNegativos+=prueba;
                    n++;
                    std::cout << prueba << "\n";
                }
                else if(prueba==0){
               
                }
                prueba=0;
                signo=1;
                break;
            default:
            {
                cout << "Invalid character, introduce numbers.";
                prueba=0;
                caracter=' ';
            }
        }
    }

1 Answer

0 votes
answered Nov 16, 2020 by Peter Minarik (22,620 points)
To me, this seems to be a duplicate  of http://question.onlinegdb.com/8595/help-with-my-program
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