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From "Stefan Teleman (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (STDCXX-1062) std::vector<bool>::at() throws the wrong exception
Date Thu, 16 Feb 2012 20:50:59 GMT
std::vector<bool>::at() throws the wrong exception
--------------------------------------------------

                 Key: STDCXX-1062
                 URL: https://issues.apache.org/jira/browse/STDCXX-1062
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 23. Containers
    Affects Versions: 4.2.1, 4.2.x, 4.3.x
         Environment: Solaris 10 and 11
RedHat Linux, OpenSuSE Linux

Defect is independent of platform and/or compiler
            Reporter: Stefan Teleman
             Fix For: 4.2.2, 4.2.x, 4.3.x, 5.0.0


The std::vector<bool>::at() specialization throws the wrong exception:

{code:title=test.cc|borderStyle=solid}
#include <iostream>
#include <vector>
#include <stdexcept>

static const size_t maxlen = 10;

int main()
{
    size_t i;
    bool b;
    int r;
    int ret = 0;
    int x = 0;

    std::vector<int> vi(maxlen, 1);
    std::vector<bool> vb(maxlen, false);

    try
    {
        r = vi.at (12);
    }
    catch (std::out_of_range& e)
    {
        std::cerr << "std::vector<int>::at(12): OK" << std::endl;
        ++x;
    }
    catch (std::exception& e)
    {
        std::cerr << "std::vector<int>::at(12): wrong exception: "
                << e.what() << std::endl;
        ++ret;
        ++x;
    }
    catch ( ... )
    {
        std::cerr << "std::vector<int::>at(12): wrong exception!"
                << std::endl;
        ++ret;
        ++x;
    }

    try
    {
        b = vb.at(12);
    }
    catch (std::out_of_range& e)
    {
        std::cerr << "std::vector<bool>::at(12): OK" << std::endl;
        ++x;
    }
    catch (std::exception& e)
    {
        std::cerr << "std::vector<bool>::at(12): wrong exception: "
                << e.what() << std::endl;
        ++ret;
        ++x;
    }
    catch ( ... )
    {
        std::cerr << "std::vector<boolt>::at(12): wrong exception!"
                    << std::endl;
        ++ret;
        ++x;
    }

    if (x == 0)

    {
        std::cerr << "no exception was thrown" << std::endl;
        ++ret;
    }

    return ret;
}
{code}

1. Output from GCC 4.5.0 on OpenSuSE Linux 11.3:
{noformat}
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:04][1028]>> ./test-gcc
std::vector<int>::at(12): OK
std::vector<bool>::at(12): OK
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:16][1029]>> echo $status
0
{noformat}

2. Output from SunPro C++ 12.2 with libCstd (default):
{noformat}
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:25][1032]>> ./test-cstd
std::vector<int>::at(12): OK
std::vector<bool>::at(12): OK
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:29][1033]>> echo $status
0
{noformat}

3. Output from Intel C++ 12.10:
{noformat}
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:39:33][1053]>> ./test-icc 
std::vector<int>::at(12): OK
std::vector<bool>::at(12): OK
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:39:36][1054]>> echo $status
0
{noformat}

4. Output from SunPro C++ 12.2 with our patched stdcxx:
{noformat}
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:31][1034]>> ./test-stdcxx
std::vector<int>::at(12): OK
std::vector<bool>::at(12): OK
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:35][1035]>> echo $status
0
{noformat}

5. Output from Pathscale 4.0.12.1 (which didn't patch stdcxx):
{noformat}
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:37][1036]>> ./test-pathscale
std::vector<int>::at(12): OK
std::vector<bool>::at(12): wrong exception: /opt/pathscale/ekopath-4.0.12.1/include/4.0.12.1/stl/vector:1236:
std::vector<bool, _Allocator>::reference std::vector<bool, _Allocator>::at(typename
_Allocator::size_type) [with _Allocator = std::allocator<bool>]: length error: size
12 out of range [0, 10)
[steleman@darthvader][/src/steleman/programming/stdcxx-ss122/bugfixes-sunw/vector.bool][02/16/2012
15:37:42][1037]>> echo $status
1
{noformat}



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