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ucrt側のバグという可能性。せめてこの報告されてるissueをupvoteしておきますか・・・
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> [https://github.com/microsoft/terminal/issues/4551#issuecomment-585487802](https://github.com/microsoft/terminal/issues/4551#issuecomment-585487802)
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> ReadFile and ReadConsoleA are currently limited to 7-bit ASCII when the input codepage is UTF-8 (65001) due to an assumption of 1 CHAR per WCHAR when calling WideCharToMultiByte.
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> ReadFile and ReadConsoleA are currently limited to 7-bit ASCII when the input codepage is UTF-8 (65001) due to an assumption of 1 CHAR per WCHAR when calling WideCharToMultiByte.
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---
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いやまてよ、そもそもこのバグが治ったとして、どうせ内部でUTF-16->UTF-8変換が挟まるなら、ユーザーランドでやっても変わらなくないか？となるとネタで昔作った
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[https://github.com/yumetodo/utf8_streambuf](https://github.com/yumetodo/utf8_streambuf)
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がまさかの出番という可能性・・・。
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うーん、
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[https://developercommunity.visualstudio.com/t/-read-cannot-read-utf-8-but-cgets-s-can/910961](https://developercommunity.visualstudio.com/t/-read-cannot-read-utf-8-but-cgets-s-can/910961)
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にあるように、ReadConsoleW のラッパーたる_cgets_sを使うのがワークアラウンドっぽい？
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ucrt側のバグという可能性。
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ucrt側のバグという可能性。せめてこの報告されてるissueをupvoteしておきますか・・・
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> [https://github.com/microsoft/terminal/issues/4551#issuecomment-585487802](https://github.com/microsoft/terminal/issues/4551#issuecomment-585487802)
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> ReadFile and ReadConsoleA are currently limited to 7-bit ASCII when the input codepage is UTF-8 (65001) due to an assumption of 1 CHAR per WCHAR when calling WideCharToMultiByte.
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