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Section: 31.8 [string.streams], 31.10 [file.streams] Status: New Submitter: Jens Maurer Opened: 2019-11-01 Last modified: 2019-11-04
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It is unclear whether the streams headers implicitly #include <ios> and make (for example) the name std::basic_ios available after including <sstream>.This question becomes more important as header units arrive with modules, where there is an explicit choice whether to re-export names from subordinate headers.
[2019-11 Priority to 3 during Monday issue prioritization in Belfast]