Ian Jackson
55159e80ad
print macros: add xrefs to format syntax documentation
2023-08-28 11:51:41 +02:00
clubby789
7201271fe8
Fix typo in eprintln docs
2023-06-21 01:08:10 +01:00
gimbles
cc2881391a
Add tidy check for dbg
2022-12-31 15:32:09 +05:30
Usama Arif
dfbc1f712d
stdio: Document no support for writing to non-blocking stdio/stderr
...
Printing to stdio/stderr that have been opened with non-blocking
(O_NONBLOCK in linux) can result in an error, which is not handled
by std::io module causing a panic.
Signed-off-by: Usama Arif <usama.arif@bytedance.com>
2022-09-07 14:22:57 +01:00
Guillaume Gomez
ae838f7645
Rollup merge of #99742 - sigaloid:master, r=thomcc
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Add comments about stdout locking
This is the source of some confusion regarding the `println!` macro:
* https://llogiq.github.io/2017/06/01/perf-pitfalls.html#unbuffered-io
* https://news.ycombinator.com/item?id=18794930
* https://reddit.com/r/rust/comments/5puyx2/why_is_println_so_slow/dcua5g5/
* https://reddit.com/r/rust/comments/ab7hsi/comparing_pythagorean_triples_in_c_d_and_rust/ecy7ql8/
In some of these cases it's not the locking behavior where the bottleneck lies, but it's still mentioned as a surprise when, eg, benchmarking a million `println!`'s in a very tight loop.
If there's any stylistic problems please feel free to correct me! This is my first contribution and I want to get it right 🦀
2022-08-26 14:08:44 +02:00
Isaac Cloos
acca4b8f86
Extra documentation for new formatting feature
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High traffic macros should detail this helpful addition.
2022-08-21 15:28:27 -04:00
sigaloid
fab36d1713
Add comments about stdout locking
2022-07-25 21:58:30 -04:00
David Tolnay
0502496b1e
Make write/print macros eagerly drop temporaries
2022-05-22 16:11:08 -07:00
Gim
a47edcf72a
Update macros.rs
2022-05-18 07:31:58 +05:30
bors
4dd8b420c0
Auto merge of #96521 - petrochenkov:docrules, r=notriddle,GuillaumeGomez
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rustdoc: Resolve doc links referring to `macro_rules` items
cc https://github.com/rust-lang/rust/issues/81633
UPD: the fallback to considering *all* `macro_rules` in the crate for unresolved names is not removed in this PR, it will be removed separately and will be run through crater.
2022-05-01 20:28:10 +00:00
Vadim Petrochenkov
6083db7c4e
Fix some links in the standard library
2022-05-01 00:02:34 +03:00
David Tolnay
3a8f81aac9
Make [e]println macros eagerly drop temporaries (for backport)
2022-04-27 13:22:41 -07:00
David Tolnay
af53809c87
Format core and std macro rules, removing needless surrounding blocks
2022-03-11 15:26:51 -08:00
Alex Macleod
7ea03db04a
Add diagnostic items for macros
2022-01-06 14:59:33 +00:00
Pietro Albini
24f9de5a44
bump bootstrap compiler to 1.55
2021-08-01 11:19:24 -04:00
Aaron Hill
886dea2bcd
Make SEMICOLON_IN_EXPRESSIONS_FROM_MACROS warn by default
2021-07-27 14:17:37 -05:00
Vadim Petrochenkov
6c9ea1e8a9
expand: Support helper attributes for built-in derive macros
2021-07-13 21:59:22 +03:00
Ian Jackson
b36a3162fe
Change "etc." to "and similar"
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Co-authored-by: Josh Triplett <josh@joshtriplett.org>
2021-05-13 15:02:02 +01:00
Ian Jackson
a173518ceb
dbg macro: Discuss use in tests, and slightly clarify
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Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
2021-05-12 12:09:53 +01:00
LeSeulArtichaut
a6eb836ff0
Use #[doc = include_str!()] in std
2021-02-23 15:54:55 +01:00
Joshua Nelson
3733275854
Update the bootstrap compiler
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Note this does not change `core::derive` since it was merged after the
beta bump.
2021-02-20 17:19:30 -05:00
Mara Bos
d5414f9a9f
Implement new panic!() behaviour for Rust 2021.
2021-01-25 13:48:11 +01:00
Lzu Tao
d0c1405564
Document why cannot use concat! in dbg!
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Co-authored-by: Miguel Ojeda <ojeda@users.noreply.github.com>
2021-01-21 10:50:21 +00:00
Mark Rousskov
fe031180d0
Bump bootstrap compiler to 1.50 beta
2020-12-30 09:27:19 -05:00
Mara Bos
ff8df0bbe3
Add cfg(not(test)) to std_panic_macro rustc_diagnostic_item.
2020-10-19 10:57:44 +02:00
Mara Bos
dd262e3856
Add cfg(not(bootstrap)) on the new rustc_diagnostic_item attributes.
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The beta compiler doesn't accept rustc_diagnostic_items on macros yet.
2020-10-18 23:45:20 +02:00
Mara Bos
462ee9c1b5
Mark the panic macros as diagnostic items.
2020-10-18 22:20:19 +02:00
Taiki Endo
04c0018d1b
Use ? in core/std macros
2020-10-26 07:15:37 +09:00
Camelid
637659be6a
Add missing links
2020-08-22 20:23:50 -07:00
Camelid
becf5ec4ea
Add missing intra-doc link
2020-08-22 17:41:40 -07:00
Camelid
5d32786b4f
Switch to intra-doc links in std::macros
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Also:
* Fix typo in module docs
* Link to `std::io::stderr` instead of `std::io::Stderr` to match the
link text
* Link to `std::io::stdout`
2020-08-22 15:44:00 -07:00
mark
2c31b45ae8
mv std libs to library/
2020-07-27 19:51:13 -05:00
