View Compilation Error

548831_0_0_12239.c: In function `read':
548831_0_0_12239.c:14: error: 'for' loop initial declaration used outside C99 mode
548831_0_0_12239.c:16: error: redefinition of 'i'
548831_0_0_12239.c:14: error: previous definition of 'i' was here
548831_0_0_12239.c:16: error: 'for' loop initial declaration used outside C99 mode
548831_0_0_12239.c: In function `add':
548831_0_0_12239.c:22: error: 'for' loop initial declaration used outside C99 mode
548831_0_0_12239.c: In function `main':
548831_0_0_12239.c:52: error: 'for' loop initial declaration used outside C99 mode