Function sol_memcmp 

pub unsafe fn sol_memcmp(s1: &[u8], s2: &[u8], n: usize) -> i32

Like C memcmp.

Arguments

• s1 - Slice to be compared
• s2 - Slice to be compared
• n - Number of bytes to compare

Errors

When executed within a SBF program, the memory regions spanning n bytes from from the start of dst and src must be mapped program memory. If not, the program will abort.

Safety

It does not verify that n is less than or equal to the lengths of the dst and src slices passed to it — it will read bytes beyond the slices.

Specifying an n greater than either the length of dst or src will likely introduce undefined behavior.