Built-in macros to the compiler itself.

Ensure that a boolean expression is true at runtime.

Asserts that two expressions are equal to each other, testing equality in both directions.

Ensure that a boolean expression is true at runtime.

Asserts that two expressions are equal to each other, testing equality in both directions.

The entry point for failure of rust tasks.

Use the syntax described in std::fmt to create a value of type String. See std::fmt for more information.

Declare a task-local key with a specific type.

Equivalent to the println! macro except that a newline is not printed at the end of the message.

Macro for printing to a task's stdout handle.

A macro to select an event from a number of receivers.

Helper macro for unwrapping Result values while returning early with an error if the value of the expression is Err. For more information, see std::io.

A standardised placeholder for marking unfinished code. It fails with the message "not yet implemented" when executed.

A utility macro for indicating unreachable code. It will fail if executed. This is occasionally useful to put after loops that never terminate normally, but instead directly return from a function.

Create a std::vec::Vec containing the arguments.

Use the format! syntax to write data into a buffer of type &mut Writer. See std::fmt for more information.

Equivalent to the write! macro, except that a newline is appended after the message is written.