Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://cplusplus.github.io/LWG/issue700 below:

Issue 700: N1856 defines struct identity

This page is a snapshot from the LWG issues list, see the Library Active Issues List for more information and the meaning of CD1 status.

Section: 22.2.4 [forward] Status: CD1 Submitter: P.J. Plauger Opened: 2007-07-01 Last modified: 2016-01-28

Priority: Not Prioritized

View all other issues in [forward].

View all issues with CD1 status.

Discussion:

N1856 defines struct identity in <utility> which clashes with the traditional definition of struct identity in <functional> (not standard, but a common extension from old STL). Be nice if we could avoid this name clash for backward compatibility.

Proposed resolution:

Change 22.2.4 [forward]:

template <class T> struct identity
{
    typedef T type;
    const T& operator()(const T& x) const;
};

const T& operator()(const T& x) const;

Returns: x.

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4