View Compilation Error

0_0_4666221_14701.c:2: error: syntax error before "isShui"
0_0_4666221_14701.c: In function `isShui':
0_0_4666221_14701.c:9: error: `true' undeclared (first use in this function)
0_0_4666221_14701.c:9: error: (Each undeclared identifier is reported only once
0_0_4666221_14701.c:9: error: for each function it appears in.)
0_0_4666221_14701.c:10: error: `false' undeclared (first use in this function)