[Osi] Adding a row provokes a segfault

[Christophe-Marie Duquesne]

Adding a column first does not solve this:

This program throws a CoinError:

#include <coin/OsiSolverInterface.hpp>
#include <coin/OsiClpSolverInterface.hpp>
#include <coin/CoinPackedVector.hpp>


int main(int argc, const char *argv[])
{
    OsiSolverInterface * solver = new OsiClpSolverInterface();

    CoinPackedVector vector;
    vector.insert(1, 1);

    solver->addCol(vector, 0, 1, 1);

    delete solver;
    return 0;
}

(gdb) bt
#0  0x00110416 in __kernel_vsyscall ()
#1  0x005fcd11 in raise () from /lib/libc.so.6
#2  0x005fe5ea in abort () from /lib/libc.so.6
#3  0x00d41397 in __gnu_cxx::__verbose_terminate_handler() () from
/usr/lib/libstdc++.so.6
#4  0x00d3f226 in ?? () from /usr/lib/libstdc++.so.6
#5  0x00d3f263 in std::terminate() () from /usr/lib/libstdc++.so.6
#6  0x00d3f3a2 in __cxa_throw () from /usr/lib/libstdc++.so.6
#7  0x001a0e54 in OsiClpSolverInterface::freeCachedResults
(this=0x804afa0) at OsiClpSolverInterface.cpp:4088
#8  0x0019a08c in OsiClpSolverInterface::addCol (this=0x804afa0,
vec=..., collb=0, colub=1, obj=1) at OsiClpSolverInterface.cpp:2863
#9  0x080488ad in main ()

-- 
Christophe-Marie Duquesne
06 84 14 26 82 - mobile
04 76 57 48 06 - g-scop
04 97 23 27 33 - amadeus