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Rollup merge of #107110 - strega-nil:mbtwc-wctmb, r=ChrisDenton

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[stdio][windows] Use MBTWC and WCTMB

`MultiByteToWideChar` and `WideCharToMultiByte` are extremely well optimized, and therefore should probably be used when we know we can (specifically in the Windows stdio stuff).

Fixes #107092
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Matthias Krüger 2023-02-27 18:48:48 +01:00 • committed by GitHub
commit 3fe4023370
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3 changed files with 78 additions and 29 deletions
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library/std/src/lib.rs
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@ -232,6 +232,7 @@
all(target_vendor = "fortanix", target_env = "sgx"),
feature(slice_index_methods, coerce_unsized, sgx_platform)
)]
#![cfg_attr(windows, feature(round_char_boundary))]
//
// Language features:
#![feature(alloc_error_handler)]