Main.c: In function `main':
Main.c:11: error: 'for' loop initial declaration used outside C99 mode
Main.c:12: error: 'for' loop initial declaration used outside C99 mode
Main.c:17: error: `bool' undeclared (first use in this function)
Main.c:17: error: (Each undeclared identifier is reported only once
Main.c:17: error: for each function it appears in.)
Main.c:17: error: syntax error before "homogeneous"
Main.c:18: error: redefinition of 'i'
Main.c:11: error: previous definition of 'i' was here
Main.c:18: error: 'for' loop initial declaration used outside C99 mode
Main.c:18: error: `homogeneous' undeclared (first use in this function)
Main.c:19: error: redefinition of 'j'
Main.c:12: error: previous definition of 'j' was here
Main.c:19: error: 'for' loop initial declaration used outside C99 mode
Main.c:21: error: `false' undeclared (first use in this function)