View Compilation Error

0_0_2988011_803.c: In function `main':
0_0_2988011_803.c:9: error: `bool' undeclared (first use in this function)
0_0_2988011_803.c:9: error: (Each undeclared identifier is reported only once
0_0_2988011_803.c:9: error: for each function it appears in.)
0_0_2988011_803.c:9: error: syntax error before "first"
0_0_2988011_803.c:13: error: `first' undeclared (first use in this function)
0_0_2988011_803.c:13: error: `true' undeclared (first use in this function)