able/ext2-rs
Archived
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

redo definitions on casts

Browse source
This commit is contained in:
Szymon Walter 2018-03-19 08:38:44 +01:00
parent 172c267917
commit 6b34d3325a
1 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/buffer/mod.rs
View file

@ -78,16 +78,17 @@ where
} }
impl<'a> BufferSlice<'a, u8> { impl<'a> BufferSlice<'a, u8> {
pub fn dynamic_cast<T: Copy>(&self) -> (T, usize) { pub unsafe fn dynamic_cast<T: Copy>(&self) -> (T, usize) {
assert!(self.inner.len() >= mem::size_of::<T>()); assert!(self.inner.len() >= mem::size_of::<T>());
let index = self.index; let index = self.index;
let cast = unsafe { let cast = mem::transmute_copy(self.inner.as_ptr().as_ref().unwrap());
mem::transmute_copy(self.inner.as_ptr().as_ref().unwrap())
};
(cast, index) (cast, index)
} }
pub fn from_cast<T: Copy>(cast: &T, index: usize) -> BufferSlice<'a, u8> { pub fn from_cast<T: Copy>(
cast: &'a T,
index: usize,
) -> BufferSlice<'a, u8> {
let len = mem::size_of::<T>(); let len = mem::size_of::<T>();
let ptr = cast as *const T as *const u8; let ptr = cast as *const T as *const u8;
let slice = unsafe { slice::from_raw_parts(ptr, len) }; let slice = unsafe { slice::from_raw_parts(ptr, len) };