[Boost-bugs] [Boost C++ Libraries] #11740: string_ref not working correctly with rvalue of std::string

Subject: [Boost-bugs] [Boost C++ Libraries] #11740: string_ref not working correctly with rvalue of std::string
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2015-10-19 15:04:29

#11740: string_ref not working correctly with rvalue of std::string
--------------------------+---------------------------
 Reporter:  steweg@…      |      Owner:  no-maintainer
     Type:  Bugs          |     Status:  new
Milestone:                |  Component:  utility
  Version:  Boost 1.59.0  |   Severity:  Problem
 Keywords:  string_ref    |
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 This is currently allowed:
 boost::string_ref something;
 something = "temp";  // works ok
 something = std::string("temp"); //doesn't work corretly

 while it should not be a should only be:
 boost::string_ref something;
 something = "temp"; // works ok
 std::string tempStr("temp");
 something = tempStr; // works ok

 Current version is pointing to buffer that is no longer part of any
 std::string, therefore if you use something like valgrind it will trigger
 and error.

 Attached is a simple patch that prevent this.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/11740>
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