View Compilation Error

0_0_10828882_9644.c: In function `add':
0_0_10828882_9644.c:6: error: 'for' loop initial declaration used outside C99 mode
0_0_10828882_9644.c: In function `main':
0_0_10828882_9644.c:23: error: 'for' loop initial declaration used outside C99 mode
0_0_10828882_9644.c:30: error: 'for' loop initial declaration used outside C99 mode