Why is this random integer repeating?

[dingo25]

This is my program:

void roll_strength()
    {
        srand(time(0));
        strength = rand() % (21 - 1) + 1;
    }

    void roll_constitution()
    {
        srand(time(0));
        constitution = rand() % (21 - 1) + 1;
    }

    void roll_dexterity()
    {
        srand(time(0));
        dexterity = rand() % (21 - 1) + 1;
    }

    void roll_intelligence()
    {
        srand(time(0));
        intelligence = rand() % (21 -1) + 1;
    }

    void roll_wisdom()
    {
        srand(time(0));
        wisdom = rand() % (21 - 1) + 1;
    }

    void roll_charisma()
    {
        srand(time(0));
        charisma = rand() % (21 - 1) + 1;
    }

    void roll_values()
    {
        roll_strength();
        roll_constitution();
        roll_dexterity();
        roll_intelligence();
        roll_wisdom();
        roll_charisma();
    }

It's supposed to spit out different values for each of the stats, but instead it spits out the same number every time. Could I get some suggestions?

[Hippogriff]

You should only ever call srand(time(0)); at the start of your program, not in every function. It is just used to start the random number generator it is not directly used.

[dingo25]

Thank you!