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From "Farid Zaripov (JIRA)" <j...@apache.org>
Subject [jira] Created: (STDCXX-629) std::string::assign (reverse_iterator, reverse_iterator) assigning self incorrect
Date Thu, 01 Nov 2007 18:11:50 GMT
std::string::assign (reverse_iterator, reverse_iterator) assigning self incorrect
---------------------------------------------------------------------------------

                 Key: STDCXX-629
                 URL: https://issues.apache.org/jira/browse/STDCXX-629
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 21. Strings
    Affects Versions: 4.2, 4.1.4, 4.1.3, 4.1.2
         Environment: All
            Reporter: Farid Zaripov
            Priority: Minor
             Fix For: 4.2.1


The 21.string.assign.cpp test has been failing a number of assertions for self-referential
test cases that exercise the ability to assign a substring of a string into itself using the
assign(InputIterator, InputIterator) member template specialization for InputIterator being
an actual reverse_iterator. The program below reproduces the problem in a small isolated test
case.


#include <cassert>
#include <string>

int main ()
{
    std::string s ("abc");
    s.assign (s.rbegin () + 1, s.rend ());
    assert ("ba" == s);
}


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