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From "Travis Vitek (JIRA)" <j...@apache.org>
Subject [jira] Updated: (STDCXX-249) std::operator>>(istream, string&) inefficient
Date Tue, 05 Feb 2008 19:49:07 GMT

     [ https://issues.apache.org/jira/browse/STDCXX-249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Travis Vitek updated STDCXX-249:
--------------------------------

    Attachment: stdcxx-249.patch


{noformat}
2008-02-05  Travis Vitek  <vitek@roguewave.com>

	STDCXX-249
	* include/istream.cc (operator>>): Read stream data in blocks
	where possible for efficiency.
	* include/streambuf: Add operator>> as friend for access to
	protected member functions.
{noformat}

> std::operator>>(istream, string&) inefficient
> ---------------------------------------------
>
>                 Key: STDCXX-249
>                 URL: https://issues.apache.org/jira/browse/STDCXX-249
>             Project: C++ Standard Library
>          Issue Type: Improvement
>          Components: 21. Strings
>    Affects Versions: 4.1.2, 4.1.3, 4.1.4, 4.2.0
>         Environment: all
>            Reporter: Martin Sebor
>            Assignee: Travis Vitek
>            Priority: Minor
>             Fix For: 4.2.1
>
>         Attachments: stdcxx-249.patch
>
>   Original Estimate: 8h
>  Remaining Estimate: 8h
>
> The string extractor reads and appends one character at a time. It could be made more
efficient by extracting and appending all non-whitespace characters that are available in
the buffer in chunks. See the definition of the operator here:
> http://svn.apache.org/viewvc/stdcxx/trunk/include/istream.cc?revision=383265

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