Function memcpy

#[no_mangle]
pub extern "C" fn memcpy(
    dest: *mut u8,
    src: *const u8,
    num: usize,
) -> *mut u8

Copies a block of memory from one location to another.

This function copies num bytes from the source pointer src to the destination pointer dest.

Arguments

• dest - A pointer to the destination memory block.
• src - A pointer to the source memory block.
• num - The number of bytes to copy.

Returns

The original destination pointer dest.

Safety

This function is unsafe because it operates directly on raw pointers.