mirror of
https://github.com/lightningdevkit/rust-lightning.git
synced 2025-02-27 17:01:10 +01:00
88 lines
2.1 KiB
Rust
88 lines
2.1 KiB
Rust
#[inline]
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pub fn slice_to_be16(v: &[u8]) -> u16 {
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((v[0] as u16) << 8*1) |
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((v[1] as u16) << 8*0)
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}
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#[inline]
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pub fn slice_to_be32(v: &[u8]) -> u32 {
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((v[0] as u32) << 8*3) |
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((v[1] as u32) << 8*2) |
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((v[2] as u32) << 8*1) |
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((v[3] as u32) << 8*0)
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}
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#[inline]
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pub fn slice_to_be48(v: &[u8]) -> u64 {
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((v[0] as u64) << 8*5) |
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((v[1] as u64) << 8*4) |
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((v[2] as u64) << 8*3) |
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((v[3] as u64) << 8*2) |
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((v[4] as u64) << 8*1) |
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((v[5] as u64) << 8*0)
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}
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#[inline]
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pub fn slice_to_be64(v: &[u8]) -> u64 {
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((v[0] as u64) << 8*7) |
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((v[1] as u64) << 8*6) |
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((v[2] as u64) << 8*5) |
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((v[3] as u64) << 8*4) |
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((v[4] as u64) << 8*3) |
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((v[5] as u64) << 8*2) |
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((v[6] as u64) << 8*1) |
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((v[7] as u64) << 8*0)
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}
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#[inline]
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pub fn be16_to_array(u: u16) -> [u8; 2] {
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let mut v = [0; 2];
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v[0] = ((u >> 8*1) & 0xff) as u8;
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v[1] = ((u >> 8*0) & 0xff) as u8;
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v
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}
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#[inline]
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pub fn be32_to_array(u: u32) -> [u8; 4] {
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let mut v = [0; 4];
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v[0] = ((u >> 8*3) & 0xff) as u8;
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v[1] = ((u >> 8*2) & 0xff) as u8;
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v[2] = ((u >> 8*1) & 0xff) as u8;
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v[3] = ((u >> 8*0) & 0xff) as u8;
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v
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}
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#[inline]
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pub fn be48_to_array(u: u64) -> [u8; 6] {
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assert!(u & 0xffff_0000_0000_0000 == 0);
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let mut v = [0; 6];
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v[0] = ((u >> 8*5) & 0xff) as u8;
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v[1] = ((u >> 8*4) & 0xff) as u8;
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v[2] = ((u >> 8*3) & 0xff) as u8;
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v[3] = ((u >> 8*2) & 0xff) as u8;
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v[4] = ((u >> 8*1) & 0xff) as u8;
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v[5] = ((u >> 8*0) & 0xff) as u8;
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v
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}
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#[inline]
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pub fn be64_to_array(u: u64) -> [u8; 8] {
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let mut v = [0; 8];
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v[0] = ((u >> 8*7) & 0xff) as u8;
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v[1] = ((u >> 8*6) & 0xff) as u8;
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v[2] = ((u >> 8*5) & 0xff) as u8;
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v[3] = ((u >> 8*4) & 0xff) as u8;
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v[4] = ((u >> 8*3) & 0xff) as u8;
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v[5] = ((u >> 8*2) & 0xff) as u8;
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v[6] = ((u >> 8*1) & 0xff) as u8;
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v[7] = ((u >> 8*0) & 0xff) as u8;
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v
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}
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#[inline]
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pub fn le64_to_array(u: u64) -> [u8; 8] {
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let mut v = [0; 8];
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v[0] = ((u >> 8*0) & 0xff) as u8;
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v[1] = ((u >> 8*1) & 0xff) as u8;
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v[2] = ((u >> 8*2) & 0xff) as u8;
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v[3] = ((u >> 8*3) & 0xff) as u8;
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v[4] = ((u >> 8*4) & 0xff) as u8;
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v[5] = ((u >> 8*5) & 0xff) as u8;
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v[6] = ((u >> 8*6) & 0xff) as u8;
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v[7] = ((u >> 8*7) & 0xff) as u8;
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v
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}
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