View Compilation Error

0_0_9603786_20208.c: In function `f':
0_0_9603786_20208.c:6: error: 'for' loop initial declaration used outside C99 mode
0_0_9603786_20208.c:9: error: 'for' loop initial declaration used outside C99 mode
0_0_9603786_20208.c: In function `memsetb':
0_0_9603786_20208.c:36: error: 'for' loop initial declaration used outside C99 mode
0_0_9603786_20208.c: In function `main':
0_0_9603786_20208.c:47: error: 'for' loop initial declaration used outside C99 mode