Module `rust_future`

The Future version of the prelude of The Rust Standard Library.

See the module-level documentation for more.

Modules

alloc Memory allocation APIs
any Utilities for dynamic typing or type reflection.
arch SIMD and vendor intrinsics module.
array Utilities for the array primitive type.
ascii Operations on ASCII strings and characters.
asserting
async_iter Composable asynchronous iteration.
autodiff This module provides support for automatic differentiation. For precise information on differences between the autodiff_forward and autodiff_reverse macros and how to use them, see their respective documentation.
borrow Utilities for working with borrowed data.
bstr The ByteStr type and trait implementations.
cell Shareable mutable containers.
char Utilities for the char primitive type.
clone The Clone trait for types that cannot be 'implicitly copied'.
cmp Utilities for comparing and ordering values.
contracts Unstable module containing the unstable contracts lang items and attribute macros.
convert Traits for conversions between types.
default The Default trait for types with a default value.
error Interfaces for working with Errors.
f128 Constants for the f128 quadruple-precision floating point type.
f16 Constants for the f16 half-precision floating point type.
f32 Constants for the f32 single-precision floating point type.
f64 Constants for the f64 double-precision floating point type.
ffi Platform-specific types, as defined by C.
field Field Reflection
fmt Utilities for formatting and printing strings.
from Unstable module containing the unstable From derive macro.
future Asynchronous basic functionality.
hash Generic hashing support.
hint Hints to compiler that affects how code should be emitted or optimized.
index Helper types for indexing slices.
intrinsics Compiler intrinsics.
io Traits, helpers, and type definitions for core I/O functionality.
iter Composable external iteration.
marker Primitive traits and types representing basic properties of types.
mem Basic functions for dealing with memory, values, and types.
net Networking primitives for IP communication.
num Numeric traits and functions for the built-in numeric types.
offload This module provides support for gpu offloading. For technical details regarding the offload_kernel and offload! macros, see their respective documentation.
ops Overloadable operators.
option Optional values.
os OS-specific functionality.
panic Panic support in core.
panicking Panic support for core
pat Helper module for exporting the pattern_type macro
pin Types that pin data to a location in memory.
prelude The core prelude
primitive This module reexports the primitive types to allow usage that is not possibly shadowed by other declared types.
process A module for working with processes.
profiling Profiling markers for compiler instrumentation.
ptr Manually manage memory through raw pointers.
random Random value generation.
range
Replacement range types
result Error handling with the Result type.
simd Portable SIMD module.
slice Slice management and manipulation.
str String manipulation.
sync Synchronization primitives
task Types and Traits for working with asynchronous tasks.
time Temporal quantification.
ub_checks Provides the assert_unsafe_precondition macro as well as some utility functions that cover common preconditions.
unicode Unicode internals used in liballoc and libstd. Not public API.
unsafe_binder Operators used to turn types into unsafe binders and back.
view Helpers module for exporting the view_types macro.
wtf8 Implementation of the WTF-8 encoding.

Macros

assert Asserts that a boolean expression is true at runtime.
assert_eq Asserts that two expressions are equal to each other (using PartialEq).
assert_ne Asserts that two expressions are not equal to each other (using PartialEq).
assert_unsafe_precondition Checks that the preconditions of an unsafe function are followed.
cfg Evaluates boolean combinations of configuration flags at compile-time.
column Expands to the column number at which it was invoked.
compile_error Causes compilation to fail with the given error message when encountered.
concat Concatenates literals into a static string slice.
concat_bytes Concatenates literals into a byte slice.
const_format_args Same as format_args, but can be used in some const contexts.
debug_assert Asserts that a boolean expression is true at runtime.
debug_assert_eq Asserts that two expressions are equal to each other.
debug_assert_ne Asserts that two expressions are not equal to each other.
direct_const_arg Creates a new style directly represented const argument.
env Inspects an environment variable at compile time.
file Expands to the file name in which it was invoked.
format_args Constructs parameters for the other string-formatting macros.
format_args_nl Same as format_args, but adds a newline in the end.
impl_partial_eq
impl_partial_eq_n
impl_partial_eq_ord
include Parses a file as an expression or an item according to the context.
include_bytes Includes a file as a reference to a byte array.
include_str Includes a UTF-8 encoded file as a string.
line Expands to the line number on which it was invoked.
log_syntax Prints passed tokens into the standard output.
matches Returns whether the given expression matches the provided pattern.
module_path Expands to a string that represents the current module path.
offload Launches a kernel on an offload device (e.g., a GPU).
option_env Optionally inspects an environment variable at compile time.
panic Panics the current thread.
panic Panics the current thread.
pattern_type Creates a pattern type.
stringify Stringifies its arguments.
todo Indicates unfinished code.
trace_macros Enables or disables tracing functionality used for debugging other macros.
try Unwraps a result or propagates its error.
unimplemented Indicates unimplemented code by panicking with a message of "not implemented".
unreachable Indicates unreachable code.
view_type Creates a view type.
write Writes formatted data into a buffer.
writeln Writes formatted data into a buffer, with a newline appended.

Modules

Replacement range types

Macros