View Compilation Error

0_0_1232234_10915.c: In function `main':
0_0_1232234_10915.c:8: error: `true' undeclared (first use in this function)
0_0_1232234_10915.c:8: error: (Each undeclared identifier is reported only once
0_0_1232234_10915.c:8: error: for each function it appears in.)
0_0_1232234_10915.c:13: error: 'for' loop initial declaration used outside C99 mode