View Compilation Error

0_0_1730663_23175.c: In function `main':
0_0_1730663_23175.c:30: error: `bool' undeclared (first use in this function)
0_0_1730663_23175.c:30: error: (Each undeclared identifier is reported only once
0_0_1730663_23175.c:30: error: for each function it appears in.)
0_0_1730663_23175.c:30: error: syntax error before "tag"
0_0_1730663_23175.c:42: error: `tag' undeclared (first use in this function)
0_0_1730663_23175.c:42: error: `false' undeclared (first use in this function)