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### 53. Basic_ios destructor unspecified

Section: 31.5.4.2 [basic.ios.cons] Status: TC1 Submitter: Matt Austern Opened: 1998-06-23 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

There's nothing in 27.4.4 saying what basic_ios's destructor does. The important question is whether basic_ios::~basic_ios() destroys rdbuf().

Proposed resolution:

Add after 31.5.4.2 [basic.ios.cons] paragraph 2:

> `virtual ~basic_ios();`

> Notes: The destructor does not destroy `rdbuf()`.

Rationale:

The LWG reviewed the additional question of whether or not `rdbuf(0)` may set `badbit`. The answer is clearly yes; it may be set via `clear()`. See 31.5.4.3 [basic.ios.members], paragraph 6. This issue was reviewed at length by the LWG, which removed from the original proposed resolution a footnote which incorrectly said "`rdbuf(0)` does not set `badbit`".