array_equal man page
array_equal — compare two arrays for equality
int array_equal(array* x,array* y);
array_equal returns nonzero if x and y have the same contents: i.e.,
- x and y are both unallocated; or
- x is unallocated, y is allocated, and y has no initialized bytes; or
- x is allocated, y is unallocated, and x has no initialized bytes; or
- x and y are both allocated and have the same sequence of initialized bytes.
Otherwise it returns 0.
array_allocate(3), array_get(3), array_fail(3), array_reset(3)