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From "Farid Zaripov (JIRA)" <>
Subject [jira] Created: (STDCXX-632) std::string::insert (InputIterator, InputIterator) inserting self incorrect
Date Thu, 01 Nov 2007 18:23:50 GMT
std::string::insert (InputIterator, InputIterator) inserting self incorrect

                 Key: STDCXX-632
             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.insert.cpp test has been failing a number of assertions for self-referential
test cases that exercise the ability to insert a substring of a string into itself using the
insert(iterator, InputIterator, InputIterator) member template specialization for InputIterator
being an actual Input Iterator. The program below reproduces the problem in a small isolated
test case.

#include <cassert>
#include <string>

int main ()
    std::string s ("abc");

    typedef const unsigned char UChar;
    s.insert (s.begin (), (UChar*)&s [1], (UChar*)&s [2]);

    assert ("babc" == s);

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