Error: function does not take # parameters

Hi there, I am starting to design a very simple game, I am not done with it, this is just a beginning of it, but I had a problem, I get the following error:

Code:

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'rng': function does not take 1 parameters

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and even if I change number of parameters used I still get that error.
Is there something wrong with my code?
Thank you..

-Amy

Code:

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#include <iostream>
#include <time.h>

using namespace std;

int rng();

int main()
{
        char winlose;
        rng(winlose);
        cout<<winlose<<endl;

        return 0;
}

int rng(char state)
{
        const int n = 6; // the number of faces of the dice
        int x1, x2, sum; // the 2 number generated by the RNG (x1 & x2), and their sum
       
        srand ( (unsigned) time (NULL) ); //Initialize RNG
       
        x1 = rand( ) % n + 1;        // Generate a number from the sequence
        cout<<x1<<" ";                        // Print it
                       
        x2 = rand( ) % n + 1;        // Generate another number from the sequence
        cout<<x2<<endl;                        // Print it

        sum = x1 + x2; // summing the two randomly generated numbers
        cout<<sum<<endl;

        // if statment for checking if the sum of the 2 randomly generated numbers is 7 or 11
        if((sum==7) || (sum==11))
                state = 'w'; // w stands for win
        else if((sum==2) || (sum==3) || (sum==12))
                state = 'l'; // l stands for lose
        else
                state = 'n'; // n stands for neither nor
        // end of if statment

        return state;
}

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Code:

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#include <iostream>
#include <ctime>

using namespace std;

char rng();

int main()
{
        char winlose;
        winlose = rng();
        cout<<winlose<<endl;

        return 0;
}

char rng()
{
        const int n = 6; // the number of faces of the dice
        int x1, x2, sum; // the 2 number generated by the RNG (x1 & x2), and their sum
       
        srand ( (unsigned) time (NULL) ); //Initialize RNG
       
        x1 = rand( ) % n + 1;        // Generate a number from the sequence
        cout<<x1<<" ";                        // Print it
                       
        x2 = rand( ) % n + 1;        // Generate another number from the sequence
        cout<<x2<<endl;                        // Print it

        sum = x1 + x2; // summing the two randomly generated numbers
        cout<<sum<<endl;

        // if statment for checking if the sum of the 2 randomly generated numbers is 7 or 11
        if((sum==7) || (sum==11))
                return 'w'; // w stands for win
        else if((sum==2) || (sum==3) || (sum==12))
                return 'l'; // l stands for lose
        else
                return 'n'; // n stands for neither nor
        // end of if statment
}

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Oh, thanks for clarifying, I always get confused when using functions between in's & out's of a function (i.e. parameters and returned value/s)..

And by the way, why do you think I should use <ctime> instead of <time.h>?
Thanks

-Amy

Now that I added a new function to the program, it still gets the same error:

Code:

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'budgetcalculator': function does not take 3 parameters

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Why does the compiler give me this error?
Thanks

Code:

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// Including librarie(s) needed for running the program
#include <iostream>
#include <time.h>

using namespace std;

// declaring a prototype functions
int rng();
int budgetcalculator();

// starting the main function
int main()
{
        char winlose;
       
        winlose = rng();
       

        float budget = 10000;
        float bet;
        cin>>bet;
       
        budget = budgetcalculator(winlose, budget, bet);
        cout<<budget;

        return 0;
}

int rng()
{
        // declaring local variables
        const int n = 6; // the number of faces of the dice
        int x1, x2, sum; // the 2 number generated by the RNG (x1 & x2), and their sum
       
        srand ( (unsigned) time (NULL) ); //Initialize RNG
       
        x1 = rand( ) % n + 1;        // Generate a number from the sequence
        cout<<x1<<" ";                        // Print it
                       
        x2 = rand( ) % n + 1;        // Generate another number from the sequence
        cout<<x2<<endl;                        // Print it

        sum = x1 + x2; // summing the two randomly generated numbers
        cout<<sum<<endl;

        // if statment for checking if the sum of the 2 randomly generated numbers is 7 or 11
        if((sum==7) || (sum==11))
                return 'w';
        else if((sum==2) || (sum==3) || (sum==12))
                return 'l';
        else
                return 'n';
        // end of if statment
}
//end of function

int budgetcalculate(char state, float credit, float moneybet)
{
        if(moneybet<=credit)
                if(state=='w')
                        credit += moneybet;
                else if(state=='l')
                        credit -= moneybet;
                return credit;
}

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The reason you keep getting these errors is that the number of arguments specified in the function prototype does not agree with the number of arguments you are passing into the function and the number of arguments given in the function definition.

Code:

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int budgetcalculator();  // Zero arguments defined

...

budget = budgetcalculator(winlose, budget, bet); // Three arguments provided

...

// Three arguments defined
int budgetcalculate(char state, float credit, float moneybet)
{
    if(moneybet<=credit)
        if(state=='w')
            credit += moneybet;
        else if(state=='l')
            credit -= moneybet;
    return credit;
}

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The number of arguments in the prototype must agree with how many you pass into the function when you call it later or else the compiler will complain. Also, the return type should be a float. Change your code to this:

Code:

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float budgetcalculate(char, float, float);

...

float budgetcalculate(char state, float credit, float moneybet)
{
    if(moneybet<=credit)
        if(state=='w')
            credit += moneybet;
        else if(state=='l')
            credit -= moneybet;
    return credit;
}

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Yes, I thought this might be the solution, but when I tried it I got the following 2 errors:

1.

Code:

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unresolved external symbol "int__cdecl budgetcalculator(char,float,float)" (?budgetcalculator@@YAHDMM@Z)

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2.

Code:

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1 unresolved externals

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> int rng();
This means int rng(void); in C++ (this is different to what C would do in the same circumstance).
Just make all your prototypes agree with the definitions - that's all there is to it.

I am sorry I don't want to be repeating my question, but after defining the arguments I still get those 2 errors..

1.

Code:

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unresolved external symbol "int__cdecl budgetcalculator(char,float,float)" (?budgetcalculator@@YAHDMM@Z)

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2.

Code:

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1 unresolved externals

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Code:

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int budgetcalculator(char, float, float);
//...
int budgetcalculate(char state, float credit, float moneybet)
{

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Quote:

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Originally Posted by Dave_Sinkula

Code:

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int budgetcalculator(char, float, float);
//...
int budgetcalculate(char state, float credit, float moneybet)
{

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Ohh!! Thank you :)
I am sorry if I annoyed you ppl having such a simple mistyping error here in such a busy board..
If I find any problems while continuing this simple game I will post here.. Thank you again for being helpful.

-Amy