diff options
Diffstat (limited to 'src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types')
4 files changed, 30 insertions, 0 deletions
diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/Cargo.lock b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/Cargo.lock new file mode 100644 index 000000000..2d62cbe7a --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/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-05-mut-cant-change-types/Cargo.toml b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/Cargo.toml new file mode 100644 index 000000000..4da3b8150 --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/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-05-mut-cant-change-types/output.txt b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/output.txt new file mode 100644 index 000000000..31a07efc4 --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/output.txt @@ -0,0 +1,12 @@ +$ cargo run + Compiling variables v0.1.0 (file:///projects/variables) +error[E0308]: mismatched types + --> src/main.rs:3:14 + | +2 | let mut spaces = " "; + | ----- expected due to this value +3 | spaces = spaces.len(); + | ^^^^^^^^^^^^ expected `&str`, found `usize` + +For more information about this error, try `rustc --explain E0308`. +error: could not compile `variables` due to previous error diff --git a/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/src/main.rs b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/src/main.rs new file mode 100644 index 000000000..f52635d0b --- /dev/null +++ b/src/doc/book/listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/src/main.rs @@ -0,0 +1,6 @@ +fn main() { + // ANCHOR: here + let mut spaces = " "; + spaces = spaces.len(); + // ANCHOR_END: here +} |