View Compilation Error

0_0_2315199_18249.c: In function `cmp':
0_0_2315199_18249.c:42: error: `Road' undeclared (first use in this function)
0_0_2315199_18249.c:42: error: (Each undeclared identifier is reported only once
0_0_2315199_18249.c:42: error: for each function it appears in.)
0_0_2315199_18249.c:42: error: syntax error before ')' token
0_0_2315199_18249.c:43: error: syntax error before ')' token