8a14926f6d
* add rustc_version to build deps of ether types (needed by build script) * ethereum-types: add build script that sets cargo:rustc-cfg=asm_available on nightly * ethereum-types: #![cfg_attr(asm_available, feature(asm))] * tests: add the whole feature asm build script to make it pass on nightly CI * add #![cfg_attr(asm_available, feature(asm))] directly where needed so users don't have to add it * remove tests/build.rs since it should not be needed anymore * move inner cfg_attr attributes to the right allowed position * remove check for asm_available in contexts that already have check for that |
||
|---|---|---|
| benches | ||
| ethereum-types | ||
| fixed-hash | ||
| tests | ||
| uint | ||
| .gitignore | ||
| .travis.yml | ||
| Cargo.toml | ||
| LICENSE-APACHE | ||
| LICENSE-MIT | ||
| README.md | ||
README.md
bigint
Fixed-sized integers arithmetic
To specify a dependency, add to Cargo.toml
[dependencies]
ethereum-types = "0.1"
Little example
extern crate ethereum_types;
use ethereum_types::U256;
fn main() {
let mut val: U256 = 1023.into();
for _ in 0..200 { val = val * 2.into() }
assert_eq!(
&format!("{}", val),
"1643897619276947051879427220465009342380213662639797070513307648"
);
}
no_std crates
This crate has a feature, std, that is enabled by default. To use this crate
in a no_std context, add the following to your Cargo.toml:
[dependencies]
ethereum-types = { version = "4", default-features = false }