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### 853. `to_string` needs updating with `zero` and `one`

Section: 22.9.2 [template.bitset] Status: C++11 Submitter: Howard Hinnant Opened: 2008-06-18 Last modified: 2016-01-28

Priority: Not Prioritized

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Discussion:

Issue 396 adds defaulted arguments to the `to_string` member, but neglects to update the three newer `to_string` overloads.

[ post San Francisco: ]

> Daniel found problems with the wording and provided fixes. Moved from Ready to Review.

[ Post Summit: ]

> Alisdair: suggest to not repeat the default arguments in B, C, D (definition of to_string members)

> Walter: This is not really a definition.

> Consensus: Add note to the editor: Please apply editor's judgement whether default arguments should be repeated for B, C, D changes.

> Recommend Tentatively Ready.

[ 2009-05-09: See alternative solution in issue 1113. ]

Proposed resolution:

1. replace in 22.9.2 [template.bitset]/1 (class `bitset`)

   >     template <class charT, class traits>
   >       basic_string<charT, traits, allocator<charT> >
   >       to_string(charT zero = charT('0'), charT one = charT('1')) const;
   >     template <class charT>
   >       basic_string<charT, char_traits<charT>, allocator<charT> >
   >       to_string(charT zero = charT('0'), charT one = charT('1')) const;
   >     basic_string<char, char_traits<char>, allocator<char> >
   >       to_string(char zero = '0', char one = '1') const;

2. replace in 22.9.2.3 [bitset.members]/37

   >     template <class charT, class traits>
   >       basic_string<charT, traits, allocator<charT> >
   >       to_string(charT zero = charT('0'), charT one = charT('1')) const;

   > > 37 Returns: `to_string<charT, traits, allocator<charT> >(zero, one)`.

3. replace in 22.9.2.3 [bitset.members]/38

   >     template <class charT>
   >       basic_string<charT, char_traits<charT>, allocator<charT> >
   >       to_string(charT zero = charT('0'), charT one = charT('1')) const;

   > > 38 Returns: `to_string<charT, char_traits<charT>, allocator<charT> >(zero, one)`.

4. replace in 22.9.2.3 [bitset.members]/39

   >     basic_string<char, char_traits<char>, allocator<char> >
   >       to_string(char zero = '0', char one = '1') const;

   > > 39 Returns: `to_string<char, char_traits<char>, allocator<char> >(zero, one)`.