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3128.strstream::rdbuf needs aconst_cast

Section: 99 [depr.strstream.oper]Status:C++20Submitter: Tim SongOpened: 2018-06-30Last modified: 2021-02-25

Priority:0

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Discussion:

strstream::rdbuf has the same issue with a missingconst_cast on&sb.

Somewhat amusingly,istrstream::rdbuf andostrstream::rdbuf got this right,but each with a different style (see issue252⁽ⁱ⁾).

[2018-07-20 Status to Tentatively Ready after five positive votes on the reflector.]

[2018-11, Adopted in San Diego]

Proposed resolution:

This wording is relative toN4750.

1. Change 99 [depr.strstream.oper] p1 as indicated:

   strstreambuf* rdbuf() const;

   -1-Returns:const_cast<strstreambuf*>(&sb).