diff options
Diffstat (limited to 'src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object')
3 files changed, 15 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.lock b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.lock new file mode 100644 index 000000000..b2327c755 --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "functions-example" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.toml b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.toml new file mode 100644 index 000000000..b196f35b5 --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "functions-example" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/src/lib.rs b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/src/lib.rs new file mode 100644 index 000000000..b11407747 --- /dev/null +++ b/src/doc/book/listings/ch19-advanced-features/no-listing-19-returns-closure-trait-object/src/lib.rs @@ -0,0 +1,3 @@ +fn returns_closure() -> Box<dyn Fn(i32) -> i32> { + Box::new(|x| x + 1) +} |