Module std::runtime

Run time glue code (program entrypoint, tests, ...)

Modules

backtrace

Bindings to libbacktrace

#[cfg] internal

Functions

fn in_const_context() -> bool

source

Returns true when evaluated in a const context and false otherwise.

Example

use std::runtime::in_const_context;

const IN_CONST_CONTEXT: bool = in_const_context();

assert!(IN_CONST_CONTEXT);
assert!(!in_const_context());
Run this example

Macros

is_const_evaluable

Returns true when the argument is an expression that can be evaluated at compile time.

const_eval

Forces the evaluation of the argument at compile time.