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0_0_1565043_1804.c: In function `pow':
0_0_1565043_1804.c:19: error: 'for' loop initial declaration used outside C99 mode
0_0_1565043_1804.c:20: error: 'for' loop initial declaration used outside C99 mode
0_0_1565043_1804.c:31: error: 'for' loop initial declaration used outside C99 mode
0_0_1565043_1804.c:32: error: 'for' loop initial declaration used outside C99 mode