View Compilation Error

172594_0_2752.c: In function `main':
172594_0_2752.c:7: error: `bool' undeclared (first use in this function)
172594_0_2752.c:7: error: (Each undeclared identifier is reported only once
172594_0_2752.c:7: error: for each function it appears in.)
172594_0_2752.c:7: error: syntax error before "d"
172594_0_2752.c:13: error: `d' undeclared (first use in this function)
172594_0_2752.c:24: error: `false' undeclared (first use in this function)