diff options
| -rw-r--r-- | src/librustc/diagnostics.rs | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/src/librustc/diagnostics.rs b/src/librustc/diagnostics.rs index 56d57d39be6..7c350987aa1 100644 --- a/src/librustc/diagnostics.rs +++ b/src/librustc/diagnostics.rs @@ -419,9 +419,32 @@ fn f() {} // ok! "##, E0138: r##" +More than one function was declared with the `#[start]` attribute. + +Erroneous code example: + +```compile_fail +#![feature(start)] + +#[start] +fn foo(argc: isize, argv: *const *const u8) -> isize {} + +#[start] +fn f(argc: isize, argv: *const *const u8) -> isize {} +// error: multiple 'start' functions +``` + This error indicates that the compiler found multiple functions with the `#[start]` attribute. This is an error because there must be a unique entry -point into a Rust program. +point into a Rust program. Example: + + +``` +#![feature(start)] + +#[start] +fn foo(argc: isize, argv: *const *const u8) -> isize {} // ok! +``` "##, // FIXME link this to the relevant turpl chapters for instilling fear of the |