Function avr_libc::memcmp_PF

pub unsafe extern "C" fn memcmp_PF(
    arg1: *const c_void, 
    arg2: uint_farptr_t, 
    arg3: size_t
) -> i16

\ingroup avr_pgmspace \fn int memcmp_PF(const void *s1, uint_farptr_t s2, size_t len) \brief Compare memory areas

The memcmp_PF() function compares the first \p len bytes of the memory areas \p s1 and flash \p s2. The comparision is performed using unsigned char operations. It is an equivalent of memcmp_P() function, except that it is capable working on all FLASH including the exteded area above 64kB.

\returns The memcmp_PF() function returns an integer less than, equal to, or greater than zero if the first \p len bytes of \p s1 is found, respectively, to be less than, to match, or be greater than the first \p len bytes of \p s2.