View Compilation Error

0_0_1699861_20506.c:2: error: syntax error before '&' token
0_0_1699861_20506.c: In function `getlast':
0_0_1699861_20506.c:4: error: `m' undeclared (first use in this function)
0_0_1699861_20506.c:4: error: (Each undeclared identifier is reported only once
0_0_1699861_20506.c:4: error: for each function it appears in.)
0_0_1699861_20506.c:8: error: `f' undeclared (first use in this function)