theoludwig/rust_book
theoludwig/rust_book
1
1
Fork 0
mirror of https://github.com/theoludwig/rust_book.git synced 2024-12-08 00:45:41 +01:00
Code Issues Actions Releases Activity

docs(chap1): extend info about usage of prelude

Browse Source
This commit is contained in:
Walid 2024-01-30 10:23:01 +01:00
parent 2a41387d8e
commit 681fd0c0c9
Signed by: Walidoux
GPG Key ID: CCF21881FE8BEBAF
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
chapter_1_getting_started/src/main.rs
View File

@ -1,5 +1,7 @@
// Scope of a program => prelude // Scope of a program => prelude
// If a type you want to use isn't in the prelude, you have to bring that type into scope explicitly with a `use` statement. // If a type you want to use isn't in the prelude, you have to bring that type into scope explicitly with a `use` statement.
// Sometimes it's best not to use the prelude to ->avoid name conflicts<-when importing other crates, or especially when using
// common data structures for instance HashMaps because of ->performance reasons<-, so we tend to use std::collections::BTreeMap instead
use std::io::{self, Write}; use std::io::{self, Write};
/** /**