Add examples use ? with Option<T> #1110
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marioidival
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Sep 10, 2019
Fix #1110: add examples of ? and Option
tmandry
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Sep 18, 2019
Update books ## book 24 commits in 7ddc46460f09a5cd9bd2a620565bdc20b3315ea9..871416b85c1a73717d65d6f4a9ea29e5aef3db0e 2019-06-27 09:50:36 -0400 to 2019-09-16 09:46:20 -0400 - Ch16-2 add missing Ferris (rust-lang/book#2033) - Update version mentioned on the front page - Update error messages (rust-lang/book#1737) - Update version of Rust used to 1.37 - Replace Cargo docs link with a more specific link (rust-lang/book#2066) - Added missing await reserved keyword (rust-lang/book#2064) - add does_not_compile for a snippet (rust-lang/book#2056) - Added second missing dyn (rust-lang/book#2046) - Removed unnecessary & in function call (rust-lang/book#2038) - Printing non-Display structs is a *compile* error (rust-lang/book#2031) - Update Readme mdBook version to match linked file (rust-lang/book#2012) - Update loose mdbook version reference (rust-lang/book#2003) - Added a bullet point to have list of things unsafe allows for match u… (rust-lang/book#1993) - Rewrote a confusing sentence (rust-lang/book#1986) - Replace deprecated `...` range syntax with `..=` (rust-lang/book#1977) - correct wording for integration test doc (rust-lang/book#1971) - Mark the dangle function as does_not_compile (rust-lang/book#1965) - Add more words to the quote from the actual Go documentation (rust-lang/book#1960) - Remove unused import in lfp (rust-lang/book#1944) - A small typo? (rust-lang/book#1931) - Make the code not compile to match the text (rust-lang/book#1926) - Ferris does-not-compile added (ch9.2) (rust-lang/book#1925) - ch07 - remove note regarding use and relative path (rust-lang/book#1820) - tweak opening paragraph of deref coercions (rust-lang/book#1749) ## rust-by-example 9 commits in e76be6b2dc84c6a992e186157efe29d625e29b94..67cfbf31df880728dcf7cb35b15b028ec92caf31 2019-09-03 07:42:26 -0300 to 2019-09-18 09:36:40 -0300 - Fix rust-lang/rust-by-example#90: Add supertraits and Fully Qualified syntax (rust-lang/rust-by-example#1259) - Fix some broken links. (rust-lang/rust-by-example#1258) - Fix rust-lang/rust-by-example#1253: Document enum type aliases (rust-lang/rust-by-example#1255) - Inline code in some new/changed chapters (rust-lang/rust-by-example#1254) - fix rust-lang/rust-by-example#1067: explain that unit tests can return Result<()> (rust-lang/rust-by-example#1252) - Fix rust-lang/rust-by-example#1060: add page on Impl Trait (rust-lang/rust-by-example#1251) - Fix rust-lang/rust-by-example#1053: Added a page about the dyn keyword (rust-lang/rust-by-example#1249) - Fix rust-lang/rust-by-example#1110: add examples of ? and Option (rust-lang/rust-by-example#1250) - fix 1037: add the TryFrom chapter back in (rust-lang/rust-by-example#1247)
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In Rust 1.22 added
https://blog.rust-lang.org/2017/11/22/Rust-1.22.html
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