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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /compiler/rustc_error_codes/src/error_codes/E0580.md | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compiler/rustc_error_codes/src/error_codes/E0580.md')
-rw-r--r-- | compiler/rustc_error_codes/src/error_codes/E0580.md | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/compiler/rustc_error_codes/src/error_codes/E0580.md b/compiler/rustc_error_codes/src/error_codes/E0580.md new file mode 100644 index 000000000..260575d5d --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0580.md @@ -0,0 +1,21 @@ +The `main` function was incorrectly declared. + +Erroneous code example: + +```compile_fail,E0580 +fn main(x: i32) { // error: main function has wrong type + println!("{}", x); +} +``` + +The `main` function prototype should never take arguments. +Example: + +``` +fn main() { + // your code +} +``` + +If you want to get command-line arguments, use `std::env::args`. To exit with a +specified exit code, use `std::process::exit`. |