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Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0137.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0137.md | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0137.md b/compiler/rustc_error_codes/src/error_codes/E0137.md new file mode 100644 index 000000000..d4e19170f --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0137.md @@ -0,0 +1,26 @@ +#### Note: this error code is no longer emitted by the compiler. + +More than one function was declared with the `#[main]` attribute. + +Erroneous code example: + +```compile_fail +#![feature(main)] + +#[main] +fn foo() {} + +#[main] +fn f() {} // error: multiple functions with a `#[main]` attribute +``` + +This error indicates that the compiler found multiple functions with the +`#[main]` attribute. This is an error because there must be a unique entry +point into a Rust program. Example: + +```compile_fail +#![feature(main)] + +#[main] +fn f() {} // ok! +``` |