Redeclared as different kind of symbol in c program
<p>I'm currently working on a program for school. I need to create a chart of temperature conversions given by the user of between 1 to 100. I keep getting the error "redeclared as different kind of symbol" and I'm not sure how to fix it. I also included a picture of the compiler with the errors. <a href="http://i.stack.imgur.com/8tXOV.png" rel="nofollow">compiler image</a></p>

<pre><code>#include &lt;stdio.h&gt;

int toFahrenheit(int celOne, int fahOne);

int toCelsius(int celTwo, int fahTwo); 


int main(void) {    //main


    int tempNum;   //intialize user given temperature
    int tempNumnegative = -tempNum; //initialize negative temperature num


    //ask user for number between 1 and 100
    printf ( "\nPlease enter an odd number between 1 to 100:" );
    scanf ("%d", &amp;tempNum);

    //If Else statement to make sure it is a number between 1 to 100 and reject other numbers

    if ( (tempNum &gt; 100) || (tempNum &lt; 1) ) {
        puts ( "\nError; Number must be a number between 1 to 100." );
        }

    else { 

    printf("\n____________________________");
    printf(" C\tF\t|\t|\tF\tC");
    printf("\n____________________________");

    //For loop to print 
    for ( tempNumnegative &gt;= tempNum; tempNumnegative++ ) {
        printf("\n%d\t%d\t|\t|\t%d\t%d\n", toFahrenheit(int celOne, int fahOne) , toCelsius(int celTwo, int fahTwo));
    } 
    }
}

int toFahrenheit(int celOne, int fahOne) //function
{  

    int celOne= tempNum; //celcuis one equals the given value
    int fahOne = (9 / 5) * celOne + 32; //equation for f to c
}

int toCelsius(int celTwo, int fahTwo) //function
{

    int fahTwo = tempNum; 
    int celTwo = (5 / 9) * (fahTwo - 32); //equation for c to f 
}
</code></pre>