Function pre::std::mut_pointer__impl__write_bytes__ [−][src]
pub fn mut_pointer__impl__write_bytes__()
Expand description
A stub for the preconditions of the std::mut_pointer<T>::write_bytes
function.
What is this function?
This function was generated by an impl
block inside a extern_crate
attribute that looked like this:
ⓘ
impl< T > mut_pointer < T > where T : ? Sized {
unsafe fn write_bytes(self, val : u8, count : usize);
/* other items omitted */
}
Preconditions on external functions inside of an impl
block are attached to empty functions like this one.
When the preconditions should be checked, a call to this function is inserted, which triggers checking the preconditions.
This function has preconditions
This function has the following preconditions generated by pre
attributes:
- the pointer
self
must be valid for writes self
is valid forcount * size_of::<T>()
bytes- the pointer
self
must have a proper alignment for its type - a valid value of
T
is written to*self
or*self
is never used
To call the function you need to assure
that the preconditions hold:
ⓘ
#[forward(impl pre::std::mut_pointer)]
#[assure(
valid_ptr(self, w),
reason = "<specify the reason why you can assure this here>"
)]
#[assure(
"`self` is valid for `count * size_of::<T>()` bytes",
reason = "<specify the reason why you can assure this here>"
)]
#[assure(
proper_align(self),
reason = "<specify the reason why you can assure this here>"
)]
#[assure(
"a valid value of `T` is written to `*self` or `*self` is never used",
reason = "<specify the reason why you can assure this here>"
)]
x.write_bytes(/* parameters omitted */);