diff options
Diffstat (limited to 'src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing')
4 files changed, 30 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.lock b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.lock new file mode 100644 index 000000000..2d62cbe7a --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "variables" +version = "0.1.0" + diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.toml b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.toml new file mode 100644 index 000000000..4da3b8150 --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.toml @@ -0,0 +1,6 @@ +[package] +name = "variables" +version = "0.1.0" +edition = "2021" + +[dependencies] diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/output.txt b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/output.txt new file mode 100644 index 000000000..f310e9ffa --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/output.txt @@ -0,0 +1,6 @@ +$ cargo run + Compiling variables v0.1.0 (file:///projects/variables) + Finished dev [unoptimized + debuginfo] target(s) in 0.31s + Running `target/debug/variables` +The value of x in the inner scope is: 12 +The value of x is: 6 diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/src/main.rs b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/src/main.rs new file mode 100644 index 000000000..03924fe1c --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-03-shadowing/src/main.rs @@ -0,0 +1,12 @@ +fn main() { + let x = 5; + + let x = x + 1; + + { + let x = x * 2; + println!("The value of x in the inner scope is: {x}"); + } + + println!("The value of x is: {x}"); +} |