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author | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
commit | 1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch) | |
tree | 7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/gif/src/traits.rs | |
parent | 5ecd8cf2cba827454317368b68571df0d13d7842 (diff) | |
download | fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip |
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/gif/src/traits.rs')
-rw-r--r-- | vendor/gif/src/traits.rs | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/vendor/gif/src/traits.rs b/vendor/gif/src/traits.rs new file mode 100644 index 0000000..7fe326c --- /dev/null +++ b/vendor/gif/src/traits.rs @@ -0,0 +1,49 @@ +//! Traits used in this library +use std::io; + +/// Writer extension to write little endian data +pub trait WriteBytesExt<T> { + /// Writes `T` to a bytes stream. Least significant byte first. + fn write_le(&mut self, n: T) -> io::Result<()>; + + /* + #[inline] + fn write_byte(&mut self, n: u8) -> io::Result<()> where Self: Write { + self.write_all(&[n]) + } + */ +} + +impl<W: io::Write + ?Sized> WriteBytesExt<u8> for W { + #[inline] + fn write_le(&mut self, n: u8) -> io::Result<()> { + self.write_all(&[n]) + + } +} + +impl<W: io::Write + ?Sized> WriteBytesExt<u16> for W { + #[inline] + fn write_le(&mut self, n: u16) -> io::Result<()> { + self.write_all(&[n as u8, (n>>8) as u8]) + + } +} + +impl<W: io::Write + ?Sized> WriteBytesExt<u32> for W { + #[inline] + fn write_le(&mut self, n: u32) -> io::Result<()> { + self.write_le(n as u16)?; + self.write_le((n >> 16) as u16) + + } +} + +impl<W: io::Write + ?Sized> WriteBytesExt<u64> for W { + #[inline] + fn write_le(&mut self, n: u64) -> io::Result<()> { + self.write_le(n as u32)?; + self.write_le((n >> 32) as u32) + + } +} |