Skip to content

Update #[link_ordinal] behavior #2406

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
bjorn3 wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update #[link_ordinal] behavior #2406

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion src/items/external-blocks.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -431,7 +431,7 @@ r[items.extern.attributes.link_ordinal]
### The `link_ordinal` attribute

r[items.extern.attributes.link_ordinal.intro]
The *`link_ordinal` attribute* can be applied on declarations inside an `extern` block to indicate the numeric ordinal to use when generating the import library to link against. An ordinal is a unique number per symbol exported by a dynamic library on Windows and can be used when the library is being loaded to find that symbol rather than having to look it up by name.
The *`link_ordinal` attribute* can be applied on declarations inside an `extern` block to indicate the numeric ordinal to import from the specified dynamic library and use when referencing the import from Rust. An ordinal is a unique number per symbol exported by a dynamic library on Windows and can be used when the library is being loaded to find that symbol rather than having to look it up by name.

> [!WARNING]
> `link_ordinal` should only be used in cases where the ordinal of the symbol is known to be stable: if the ordinal of a symbol is not explicitly set when its containing binary is built then one will be automatically assigned to it, and that assigned ordinal may change between builds of the binary.
Expand Down
Loading