The !
type, also called “never”.
A fixed-size array, denoted [T; N]
, for the element type, T
, and the
non-negative compile-time constant size, N
.
A 32-bit floating point type (specifically, the “binary32” type defined in IEEE 754-2008).
A 64-bit floating point type (specifically, the “binary64” type defined in IEEE 754-2008).
Function pointers, like fn(usize) -> bool
.
The 8-bit signed integer type.
The 16-bit signed integer type.
The 32-bit signed integer type.
The 64-bit signed integer type.
The 128-bit signed integer type.
The pointer-sized signed integer type.
Raw, unsafe pointers, *const T
, and *mut T
.
References, &T
and &mut T
.
A dynamically-sized view into a contiguous sequence, [T]
. Contiguous here
means that elements are laid out so that every element is the same
distance from its neighbors.
A finite heterogeneous sequence, (T, U, ..)
.
The 8-bit unsigned integer type.
The 16-bit unsigned integer type.
The 32-bit unsigned integer type.
The 64-bit unsigned integer type.
The 128-bit unsigned integer type.
The ()
type, also called “unit”.
The pointer-sized unsigned integer type.
Unstable module containing the unstable assert_matches
macro.
Composable asynchronous iteration.
Interfaces for working with Errors.
The !
type, also called “never”.
Utilities for dynamic typing or type reflection.
SIMD and vendor intrinsics module.
Utilities for the array primitive type.
Operations on ASCII strings and characters.
Utilities for working with borrowed data.
Shareable mutable containers.
Utilities for the char
primitive type.
The Clone
trait for types that cannot be ‘implicitly copied’.
Utilities for comparing and ordering values.
Traits for conversions between types.
The Default
trait for types with a default value.
Constants for the f32
single-precision floating point type.
Constants for the f64
double-precision floating point type.
Platform-specific types, as defined by C.
Utilities for formatting and printing strings.
Asynchronous basic functionality.
Hints to compiler that affects how code should be emitted or optimized.
Hints may be compile time or runtime.
Constants for the 8-bit signed integer type.
Constants for the 16-bit signed integer type.
Constants for the 32-bit signed integer type.
Constants for the 64-bit signed integer type.
Constants for the 128-bit signed integer type.
Constants for the pointer-sized signed integer type.
Composable external iteration.
Primitive traits and types representing basic properties of types.
Basic functions for dealing with memory.
Numeric traits and functions for the built-in numeric types.
Panic support in the standard library.
Types that pin data to its location in memory.
A fixed-size array, denoted [T; N]
, for the element type, T
, and the
non-negative compile-time constant size, N
.
A 32-bit floating point type (specifically, the “binary32” type defined in IEEE 754-2008).
A 64-bit floating point type (specifically, the “binary64” type defined in IEEE 754-2008).
Function pointers, like fn(usize) -> bool
.
The 8-bit signed integer type.
The 16-bit signed integer type.
The 32-bit signed integer type.
The 64-bit signed integer type.
The 128-bit signed integer type.
The pointer-sized signed integer type.
Raw, unsafe pointers, *const T
, and *mut T
.
References, &T
and &mut T
.
A dynamically-sized view into a contiguous sequence, [T]
. Contiguous here
means that elements are laid out so that every element is the same
distance from its neighbors.
A finite heterogeneous sequence, (T, U, ..)
.
The 8-bit unsigned integer type.
The 16-bit unsigned integer type.
The 32-bit unsigned integer type.
The 64-bit unsigned integer type.
The 128-bit unsigned integer type.
The ()
type, also called “unit”.
The pointer-sized unsigned integer type.
This module reexports the primitive types to allow usage that is not
possibly shadowed by other declared types.
Manually manage memory through raw pointers.
Error handling with the Result
type.
Slice management and manipulation.
Synchronization primitives
Types and Traits for working with asynchronous tasks.
Constants for the 8-bit unsigned integer type.
Constants for the 16-bit unsigned integer type.
Constants for the 32-bit unsigned integer type.
Constants for the 64-bit unsigned integer type.
Constants for the 128-bit unsigned integer type.
Constants for the pointer-sized unsigned integer type.
Concatenates literals into a byte slice.
Concatenates identifiers into one identifier.
Same as
format_args
, but can be used in some const contexts.
Prints passed tokens into the standard output.
Enables or disables tracing functionality used for debugging other macros.
Asserts that a boolean expression is true
at runtime.
Asserts that two expressions are equal to each other (using
PartialEq
).
Asserts that two expressions are not equal to each other (using
PartialEq
).
Evaluates boolean combinations of configuration flags at compile-time.
Expands to the column number at which it was invoked.
Causes compilation to fail with the given error message when encountered.
Concatenates literals into a static string slice.
Asserts that a boolean expression is true
at runtime.
Asserts that two expressions are equal to each other.
Asserts that two expressions are not equal to each other.
Inspects an environment variable at compile time.
Expands to the file name in which it was invoked.
Constructs parameters for the other string-formatting macros.
Parses a file as an expression or an item according to the context.
Includes a file as a reference to a byte array.
Includes a UTF-8 encoded file as a string.
Expands to the line number on which it was invoked.
Returns whether the given expression matches any of the given patterns.
Expands to a string that represents the current module path.
Optionally inspects an environment variable at compile time.
Panics the current thread.
Stringifies its arguments.
Indicates unfinished code.
Unwraps a result or propagates its error.
Indicates unimplemented code by panicking with a message of “not implemented”.
Indicates unreachable code.
Writes formatted data into a buffer.
Write formatted data into a buffer, with a newline appended.