[Bug libstdc++/54924] Warn for std::string constructor with wrong size

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54924



Jonathan Wakely <redi at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |NEW

           Keywords|                            |diagnostic

   Last reconfirmed|                            |2012-10-14

          Component|c++                         |libstdc++

     Ever Confirmed|0                           |1

           Severity|normal                      |enhancement



--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-14 
17:44:17 UTC ---

(In reply to comment #0)

> In other words, std::string str('0', 100) is undefined behavior.



I assume you mean std::string str("0", 100)



We might be able to use

http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html