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Merge rust-bitcoin/rust-bitcoin#2221: Implement LowerHex and UpperHex for CompactTarget 

58710dfb91 Implement LowerHex and UpperHex for CompactTarget (Vojtěch Toman)

Pull request description:

  closes #2219

ACKs for top commit:
  Kixunil:
    ACK 58710dfb91
  apoelstra:
    ACK 58710dfb91

Tree-SHA512: 38d8bd6573f0f033f5f0948062174f7a49db02d788a5176375a869633984451651bc738cd0588d5c6e4515f521257899bdf9f61fd4be350d80a26a96f16b19b1
This commit is contained in:
Andrew Poelstra 2023-11-26 14:27:56 +00:00
parent 65050db725 58710dfb91
commit cfa6768e79
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1 changed files with 16 additions and 0 deletions
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16
bitcoin/src/pow.rs
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@ -306,6 +306,16 @@ impl Decodable for CompactTarget {
} }
} }
impl LowerHex for CompactTarget {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { LowerHex::fmt(&self.0, f) }
}
impl UpperHex for CompactTarget {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { UpperHex::fmt(&self.0, f) }
}
/// Big-endian 256 bit integer type. /// Big-endian 256 bit integer type.
// (high, low): u.0 contains the high bits, u.1 contains the low bits. // (high, low): u.0 contains the high bits, u.1 contains the low bits.
#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Default)] #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
@ -1536,6 +1546,12 @@ mod tests {
assert!(result.is_err()); assert!(result.is_err());
} }
#[test]
fn compact_target_lower_hex_and_upper_hex() {
assert_eq!(format!("{:08x}", CompactTarget(0x01D0F456)), "01d0f456");
assert_eq!(format!("{:08X}", CompactTarget(0x01d0f456)), "01D0F456");
}
#[test] #[test]
fn target_from_compact() { fn target_from_compact() {
// (nBits, target) // (nBits, target)