mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

weasle, weasle

Browse Source
This commit is contained in:
Ralf Jung 2019-07-22 10:33:11 +02:00
parent 40812224ca
commit a7b9246540
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/libstd/primitive_docs.rs
View File

@ -1043,9 +1043,9 @@ mod prim_ref { }
/// [`FnOnce`]: ops/trait.FnOnce.html
///
/// Function pointers are pointers that point to *code*, not data. They can be called
/// just like functions. Like references, function pointers are assumed to not be null,
/// so if you want to pass a function pointer over FFI and be able to accommodate null pointers,
/// make your type `Option<fn()>` with your required signature.
/// just like functions. Like references, function pointers are, among other things, assumed to
/// not be null, so if you want to pass a function pointer over FFI and be able to accommodate null
/// pointers, make your type `Option<fn()>` with your required signature.
///
/// Plain function pointers are obtained by casting either plain functions, or closures that don't
/// capture an environment: