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-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0536.md | 24 |
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diff --git a/compiler/rustc_error_codes/src/error_codes/E0536.md b/compiler/rustc_error_codes/src/error_codes/E0536.md new file mode 100644 index 000000000..c081a3d9c --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0536.md @@ -0,0 +1,24 @@ +The `not` cfg-predicate was malformed. + +Erroneous code example: + +```compile_fail,E0536 +#[cfg(not())] // error: expected 1 cfg-pattern +pub fn something() {} + +pub fn main() {} +``` + +The `not` predicate expects one cfg-pattern. Example: + +``` +#[cfg(not(target_os = "linux"))] // ok! +pub fn something() {} + +pub fn main() {} +``` + +For more information about the `cfg` attribute, read the section on +[Conditional Compilation][conditional-compilation] in the Reference. + +[conditional-compilation]: https://doc.rust-lang.org/reference/conditional-compilation.html |