How to fix this error message?

function definition for read not found

typedef struct Employee

{ char first[8]; char initial[2]; char last[10]; char street[17]; char city[12]; char state[3]; char zip[6]; int age; char sex[2]; int tenure; float salary; }Employee;

// function prototypes void strsub(char buf[], char sub[], int start, int end); int read(FILE* infile, struct Employee workers[MAX]); //this is where I get the error message void write(FILE* outfile, struct Employee workers[MAX], int count);