math_functions.o

 int add(int a, int b);
int subtract_from_const(int n);
int multiply_by_const(int n);
double divide_by_const(int n);
double average(int size, int *array);
double area_of_circle(double radius);
int light_speed();

void chomp(char *string);
int my_strlen(char *string);
int my_strcmp(char *string1, char *string2);


      
 

// Sums two integers.
// Parameters: a, the first integer; b the second integer.
// Returns: the sum.
int add(int a, int b) 
{
    return a + b; // An inline comment.
}

// Subtracts an integer from a preprocessor defined constant.
// Parameters: n, the integer to subtract.
// Returns: the constant - n.
int subtract_from_const(int n) 
{
    return 100 - n;
}

// Multiplies an integer by a preprocessor defined constant.
// Parameters: n, the integer to multiply.
// Returns: the constant * n.
int multiply_by_const(int n) 
{
    return 50 * n;
}

// Divides an integer by a preprocessor defined constant.
// Parameters: n, the integer to divide.
// Returns: the constant / n.
double divide_by_const(int n) 
{
    return (double) 25 / n;
}

// Calculates the average of an array of integers.
// Parameters: size, the number of elements in the array; array, the array.
// Returns: the mean of the elements in array.
double average(int size, int *array) 
{
    int total = 0; // Store a running total.
    for(int i=0; i<size; i++) 
    {
        total += array[i];
    }
    return (double)total/size;
}

// Calculates the area of a circle.
// Parameters: radius, the radius of the circle.
// Returns: the area.
double area_of_circle(double radius)
{
    return radius * radius * 3.142 ;
}

int light_speed()
{
    return 299792458 ;
}