1.0.0[−][src]Macro std::cfg
Evaluates boolean combinations of configuration flags at compile-time.
In addition to the #[cfg]
attribute, this macro is provided to allow
boolean expression evaluation of configuration flags. This frequently
leads to less duplicated code.
The syntax given to this macro is the same syntax as the cfg
attribute.
Examples
let my_directory = if cfg!(windows) { "windows-specific-directory" } else { "unix-directory" };Run