This crate provides marker traits for primitive types:
## ...
[dependencies]
just_prim = { version = "0.1.0" }
## ...
[features]
## https://doc.rust-lang.org/beta/unstable-book/language-features/marker-trait-attr.html
marker_trait_attr = ["just_prim/marker_trait_attr"]
// Uncomment if you want to conditionally use the feature. Remove otherwise.
// #![cfg_attr(feature = "marker_trait_attr", feature(marker_trait_attr))]
use just_prim::Prim;
trait MyExtensionTraitForPrimTys: Prim {
// ...
}
fn main() {}
cargo build <other options> --features marker_trait_attr
if you want the feature andcargo build <other options>
otherwise;cargo run<other options> --features marker_trait_attr
if you want the feature andcargo build <other options>
otherwise;cargo test <other options> --features marker_trait_attr
if you want the feature andcargo test <other options>
otherwise.
With marker_trait_attr
Nightly feature, each of the provided traits also has #[marker]
attribute which allows more optimal implementation of traits via two or more "overlapping" generic impl
blocks. Without #[marker]
attribute, the "overlapping" impl
blocks would be conflicting.
epui
- Equisized (primitive) unsigned ints for primitive ints: u8 for u8, u16 for i16, etcepsi
- Equisized (primitive) signed ints for primitive intsprimitive_promotion
- Primitive promotions for primitive numeric types: u16 for u8, i32 for i16, f64 for f32, etcis_signed_trait
- Trait forIS_SIGNED
associated constantmax_len_base_10_as_usize
- Trait offering constant maximum lengths of primitive integers as usizemin_max_traits
- Traits forMIN
andMAX
associated constants- as well as others that can be found on crates.io
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in this crate by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.