Demonstrate I/O in File examples #108094
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Demonstrate I/O in File examples #108094
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r? @cuviper (rustbot has picked a reviewer for you, use r? to override) |
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Hey! It looks like you've submitted a new PR for the library teams! If this PR contains changes to any Examples of
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LGTM! @bors r+ rollup |
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Feb 16, 2023
…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#107034 (Migrating rustc_infer to session diagnostics (part 4)) - rust-lang#107972 (Fix unintentional UB in ui tests) - rust-lang#108010 (Make `InferCtxt::can_eq` and `InferCtxt::can_sub` return booleans) - rust-lang#108021 (make x look for x.py if shell script does not exist) - rust-lang#108047 (Use `target` instead of `machine` for mir interpreter integer handling.) - rust-lang#108049 (Don't suggest `#[doc(hidden)]` trait methods with matching return type) - rust-lang#108066 (Better names for illegal impl trait positions) - rust-lang#108076 (rustdoc: Use more let chain) - rust-lang#108088 (clarify correctness of `black_box`) - rust-lang#108094 (Demonstrate I/O in File examples) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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I've noticed that some Rust novices unnecessarily reinvent
std::fs::{read,write}, presumably because they search for equivalents offopen+fwrite. I've added links tostd::fs::{read,write}in the docs.The
Fileexamples were only showing how to open a file, but not how to use the opened handle, unnecessarily leaving out the next step. I've added a variety of different uses of file handles to their examples in docs.