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Refactor: reserve space before adding extra data

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Chris Hennick 2023-05-14 09:26:33 -07:00
parent 56f9ee9ab0
commit 170e5c6f58
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src/write.rs
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@ -260,6 +260,7 @@ impl FileOptions {
Rc::get_mut(field).unwrap() Rc::get_mut(field).unwrap()
} }
}; };
vec.reserve_exact(data.len() + 4);
vec.write_u16::<LittleEndian>(header_id)?; vec.write_u16::<LittleEndian>(header_id)?;
vec.write_u16::<LittleEndian>(data.len() as u16)?; vec.write_u16::<LittleEndian>(data.len() as u16)?;
vec.write_all(data)?; vec.write_all(data)?;