You've missed function return - type , signature on line 65
And also if lines from 65 to 84 is your function body, it must return int value
But according what you've done it is not function's body
So where is test_letter( char ) function's body???
Ahhh I see, this is where I am having trouble, writing the function for the program to carry out what I want it too. How would I write a function so that when the program starts the user is assigned a random word displayed with *'s instead of characters. I then need it so that when the user inputs a letter it will either be correct and swap the corresponding * for the character of if the character is not in the word the user will lose a life?