Crate sp_std

Lowest-abstraction level for the Substrate runtime: just exports useful primitives from std or client/alloc to be used with any code that depends on the runtime. Substrate runtime standard library as compiled when linked with Rust’s standard library.

Modules

alloc	Memory allocation APIs.
any	This module implements the Any trait, which enables dynamic typing of any 'static type through runtime reflection.
borrow	A module for working with borrowed data.
boxed	A pointer type for heap allocation.
cell	Shareable mutable containers.
clone	The Clone trait for types that cannot be ‘implicitly copied’.
cmp	Functionality for ordering and comparison.
collections
convert	Traits for conversions between types.
default	The Default trait for types which may have meaningful default values.
fmt	Utilities for formatting and printing Strings.
hash	Generic hashing support.
iter	Composable external iteration.
marker	Primitive traits and types representing basic properties of types.
mem	Basic functions for dealing with memory.
num	Additional functionality for numerics.
ops	Overloadable operators.
prelude	Prelude of common useful imports.
ptr	Manually manage memory through raw pointers.
rc	Single-threaded reference-counting pointers. ‘Rc’ stands for ‘Reference Counted’.
result	Error handling with the Result type.
slice	A dynamically-sized view into a contiguous sequence, [T].
str	Unicode string slices.
sync	Useful synchronization primitives.
thread
vec	A contiguous growable array type with heap-allocated contents, written Vec<T>.

Macros

if_std	Feature gate some code that should only be run when std feature is enabled.
map
vec	Creates a Vec containing the arguments.

Structs

Writer

A target for core::write! macro - constructs a string in memory.