View Compilation Error

172595_0_10813.c: In function `main':
172595_0_10813.c:7: error: `bool' undeclared (first use in this function)
172595_0_10813.c:7: error: (Each undeclared identifier is reported only once
172595_0_10813.c:7: error: for each function it appears in.)
172595_0_10813.c:7: error: syntax error before "d"
172595_0_10813.c:13: error: `d' undeclared (first use in this function)
172595_0_10813.c:24: error: `false' undeclared (first use in this function)