This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of NAD status.
104. Description of basic_string::operator[] is unclearSection: 27.4.3.5 [string.capacity] Status: NAD Submitter: AFNOR Opened: 1998-10-07 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
It is not clear that undefined behavior applies when pos == size () for the non const version.
Proposed resolution:
Rewrite as: Otherwise, if pos > size () or pos == size () and the non-const version is used, then the behavior is undefined.
Rationale:
The Standard is correct. The proposed resolution already appears in the Standard.
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