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author | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-07-19 15:37:58 +0300 |
commit | a990de90fe41456a23e58bd087d2f107d321f3a1 (patch) | |
tree | 15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/tiff/src/bytecast.rs | |
parent | 3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff) | |
download | fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip |
Deleted vendor folder
Diffstat (limited to 'vendor/tiff/src/bytecast.rs')
-rw-r--r-- | vendor/tiff/src/bytecast.rs | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/vendor/tiff/src/bytecast.rs b/vendor/tiff/src/bytecast.rs deleted file mode 100644 index 6e9d762..0000000 --- a/vendor/tiff/src/bytecast.rs +++ /dev/null @@ -1,34 +0,0 @@ -//! Trivial, internal byte transmutation. -//! -//! A dependency like bytemuck would give us extra assurance of the safety but overall would not -//! reduce the amount of total unsafety. We don't use it in the interface where the traits would -//! really become useful. -//! -//! SAFETY: These are benign casts as we apply them to fixed size integer types only. All of them -//! are naturally aligned, valid for all bit patterns and their alignment is surely at most their -//! size (we assert the latter fact since it is 'implementation defined' if following the letter of -//! the unsafe code guidelines). -//! -//! TODO: Would like to use std-lib here. -use std::{mem, slice}; - -macro_rules! integral_slice_as_bytes{($int:ty, $const:ident $(,$mut:ident)*) => { - pub(crate) fn $const(slice: &[$int]) -> &[u8] { - assert!(mem::align_of::<$int>() <= mem::size_of::<$int>()); - unsafe { slice::from_raw_parts(slice.as_ptr() as *const u8, mem::size_of_val(slice)) } - } - $(pub(crate) fn $mut(slice: &mut [$int]) -> &mut [u8] { - assert!(mem::align_of::<$int>() <= mem::size_of::<$int>()); - unsafe { slice::from_raw_parts_mut(slice.as_mut_ptr() as *mut u8, mem::size_of_val(slice)) } - })* -}} - -integral_slice_as_bytes!(i8, i8_as_ne_bytes, i8_as_ne_mut_bytes); -integral_slice_as_bytes!(u16, u16_as_ne_bytes, u16_as_ne_mut_bytes); -integral_slice_as_bytes!(i16, i16_as_ne_bytes, i16_as_ne_mut_bytes); -integral_slice_as_bytes!(u32, u32_as_ne_bytes, u32_as_ne_mut_bytes); -integral_slice_as_bytes!(i32, i32_as_ne_bytes, i32_as_ne_mut_bytes); -integral_slice_as_bytes!(u64, u64_as_ne_bytes, u64_as_ne_mut_bytes); -integral_slice_as_bytes!(i64, i64_as_ne_bytes, i64_as_ne_mut_bytes); -integral_slice_as_bytes!(f32, f32_as_ne_bytes, f32_as_ne_mut_bytes); -integral_slice_as_bytes!(f64, f64_as_ne_bytes, f64_as_ne_mut_bytes); |