generated from PlexSheep/baserepo
23 lines
594 B
Rust
23 lines
594 B
Rust
//! # Split numbers into bits and bytes
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//!
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//! Sometimes, you need a large integer in the form of many bytes, so split into [u8].
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//! Rust provides
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/// split an integer into it's bytes, ignoring those bytes that would be all zero.
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///
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/// If the integer is zero, the Vec contains a single null byte.
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pub fn unsigned_to_vec<T>(num: T) -> Vec<u8>
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where
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u128: std::convert::From<T>
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{
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let mut num: u128 = num.into();
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if num == 0 {
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return vec![0];
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}
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let mut buf: Vec<u8> = Vec::new();
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while num > 0 {
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buf.push(num as u8);
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num >>= 8;
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}
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buf
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}
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