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### 1420. Effects of `resize(size())` on a `list`

Section: 22.3.10.3 [list.capacity] Status: C++11 Submitter: BSI Opened: 2010-08-25 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

Addresses GB-115

There is no mention of what happens if `sz==size()`. While it obviously does nothing I feel a standard needs to say this explicitely.

[ Resolution proposed in ballot comment ]

Express the semantics as pseudo-code similarly to the way it is done for the copying overload that follows (in p3). Include an else clause that does nothing and covers the `sz==size()` case.

[ 2010 Batavia ]

Accepted with a simplified resolution turning one of the `<` comparisons into `<=.`

Proposed resolution:

Ammend [list.capacity] p1:

> `void resize(size_type sz);`

> > Effects: If `sz <= size()`, equivalent to `list<T>::iterator it = begin(); advance(it, sz); erase(it, end());`. If `size() < sz`, appends `sz - size()` default constructed value initialized elements to the sequence.