[Bug libstdc++/58265] New: std::string move assignment should be noexcept

[f.heckenb...@fh-soft.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58265

            Bug ID: 58265
           Summary: std::string move assignment should be noexcept
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: f.heckenb...@fh-soft.de

According to http://www.cplusplus.com/reference/string/string/operator=/,
the std::string move assignment operator should be noexcept.

#include <string>
static_assert (std::is_nothrow_move_assignable <std::string>::value, "failed");