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Merge pull request #20 from gavofyork/uint

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convenient creation of uint
This commit is contained in:
Gav Wood 2015-12-20 12:55:51 +00:00
commit 7ed49bea4d
1 changed files with 25 additions and 0 deletions
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25
src/uint.rs
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@ -97,6 +97,16 @@ macro_rules! construct_uint {
}
}
#[inline]
pub fn zero() -> $name {
From::from(0u64)
}
#[inline]
pub fn one() -> $name {
From::from(1u64)
}
/// Multiplication by u32
fn mul_u32(self, other: u32) -> $name {
let $name(ref arr) = self;
@ -125,6 +135,21 @@ macro_rules! construct_uint {
impl_map_from!($name, u8, u64);
impl_map_from!($name, u16, u64);
impl_map_from!($name, u32, u64);
impl_map_from!($name, usize, u64);
impl From<i64> for $name {
fn from(value: i64) -> $name {
match value >= 0 {
true => From::from(value as u64),
false => { panic!("Unsigned integer can't be created from negative value"); }
}
}
}
impl_map_from!($name, i8, i64);
impl_map_from!($name, i16, i64);
impl_map_from!($name, i32, i64);
impl_map_from!($name, isize, i64);
impl<'a> From<&'a [u8]> for $name {
fn from(bytes: &[u8]) -> $name {