View Compilation Error

0_0_4472711_10019.c: In function `cmp':
0_0_4472711_10019.c:14: error: `node' undeclared (first use in this function)
0_0_4472711_10019.c:14: error: (Each undeclared identifier is reported only once
0_0_4472711_10019.c:14: error: for each function it appears in.)
0_0_4472711_10019.c:14: error: syntax error before ')' token
0_0_4472711_10019.c:14: error: syntax error before ')' token