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Showing content from https://cplusplus.github.io/LWG/issue2479 below:

Unclear how wbuffer_convert uses cvtstate

This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of New status.

2479. Unclear how wbuffer_convert uses cvtstate

Section: 99 [depr.conversions.buffer] Status: New Submitter: Jonathan Wakely Opened: 2015-03-04 Last modified: 2017-04-22

Priority: 4

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Discussion:

How does wbuffer_convert use the cvtstate member?

Is the same conversion state object used for converting both the get and put areas? That means a read which runs out of bytes halfway through a multibyte character will leave some shift state in cvtstate, which would then be used by a following write, even though the shift state of the get area is unrelated to the put area.

Proposed resolution:

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