Function pre::std::ptr::swap

pub unsafe fn swap<T>(x: *mut T, y: *mut T)

std::ptr::swap with preconditions.

This function behaves exactly like std::ptr::swap, but also has preconditions checked by pre.

You should also read the Safety section on the documentation of std::ptr::swap.

This function has preconditions

This function has the following preconditions generated by pre attributes:

• the pointer x must be valid for reads and writes
• the pointer y must be valid for reads and writes
• the pointer x must have a proper alignment for its type
• the pointer y must have a proper alignment for its type

To call the function you need to assure that the preconditions hold:

#[assure(
    valid_ptr(x, r+w),
    reason = "<specify the reason why you can assure this here>"
)]
#[assure(
    valid_ptr(y, r+w),
    reason = "<specify the reason why you can assure this here>"
)]
#[assure(
    proper_align(x),
    reason = "<specify the reason why you can assure this here>"
)]
#[assure(
    proper_align(y),
    reason = "<specify the reason why you can assure this here>"
)]
swap(/* parameters omitted */);