Hier ist mal einer meiner versuche ...

#include <sstream>
#include <iostream>
using namespace std;

int main() 

{

int a[1];
string b[1] = {"1"};

stringstream str;

str<<b;

str>>a;

cout<<a;

return 0;
}

[C++ Fehler] Unit1.cpp(18): E2015 Mehrdeutigkeit zwischen '_STL::basic_istream<char,_STL::char_traits<char> >::operator >>(bool &)' und '_STL::basic_istream<char,_STL::char_traits<char> >::operator >>(void * &)'

Mein zweiter versuch:

#include <sstream>
#include <iostream>
using namespace std;

int main() 

{

int a[1];
string b[1] = {"1"};

b[1] = a[1];

return 0;
}

EAccessViolation Zugriffsverletzung bei Adresse .....

#include <iostream>
#include <string>
#include <sstream>

int main()

{

    int a[1];
    std::string b[1] = {"1"};

    std::stringstream str;

    str << b[0];

    str >> a[0];

    std::cout << a[0] << '\n';
}

#include <iostream>
#include <vector>
#include <string>
#include <iterator>
#include <boost/lexical_cast.hpp>

int to_int(const std::string& str)
{
    return boost::lexical_cast<int>(str);
}

int main()
{
    std::vector<std::string> strings;
    std::vector<int> values;
    .....
    .....
    .....

    try
    {
        std::transform(strings.begin(),strings.end(),
                       std::back_inserter(values),
                       to_int);
    }
    catch(boost::lexical_error)
    ....
    ....
}