Crate smallest_uint[−][src]
Given an unsigned type-level integer, provides access to
the smallest primitive unsigned integer type (u8
, u16
, etc.) that
can represent the integer’s value (or all values less than that value).
This is mainly useful for minimizing memory usage when building data structures.
This crate depends only on core
, so it can be used in no_std
environments.
Example
use smallest_uint::{SmallestUIntFor, SmallestUIntUpTo}; use std::any::TypeId; use typenum::U65536; assert_eq!(TypeId::of::<SmallestUIntUpTo<U65536>>(), TypeId::of::<u16>()); assert_eq!(TypeId::of::<SmallestUIntFor<U65536>>(), TypeId::of::<u32>());
Crate features
If the feature "u128"
(enabled by default) is disabled, this crate will
not use the u128
type.
Traits
GetSmallestUIntFor | Gets the smallest unsigned integer type capable of representing the value
of |
GetSmallestUIntUpTo | Gets the smallest unsigned integer type capable of representing all values
up to, but not including, the value of |
Type Definitions
SmallestUIntFor | Alias of |
SmallestUIntUpTo | Alias of |