Function sys_bitarray_is_region_cleared 

pub unsafe extern "C" fn sys_bitarray_is_region_cleared(
    bitarray: *mut sys_bitarray,
    num_bits: usize,
    offset: usize,
) -> bool

Test if bits in a region is all cleared.

This tests if the number of bits (@p num_bits) in region starting from @p offset are all cleared.

@param bitarray Bitarray struct @param num_bits Number of bits to test @param offset Starting bit position to test

@retval true All bits are cleared. @retval false Not all bits are cleared.