This given link - http://www.boost.org/doc/libs/1_54_0/doc/html/boost_lexical_cast/performance.html says string->int conversion is possible.

On Sat, Nov 2, 2013 at 3:43 PM, Daniel Anderson <wonixen@gmail.com> wrote:

2013/11/2 Rahul Mathur <srivmuk@gmail.com>

All,

I wish to have string (combination of string value and int value) which increments until 100. The code is as below -

---
#include <iostream>
#include <cstdlib>
#include <string>
#include <boost/lexical_cast.hpp>

using namespace std;

int main() {
        std::string TID = "Apple";
        int TagID = 01, Value = 000 /* 100 IDs*/;
        std::string TagName, TagInitial, TagUId;
        TagName = TID + boost::lexical_cast<std::string>(TagID); // Should be as -> Apple01
        TagInitial = TagName + boost::lexical_cast<std::string>(Value); // Should be as -> Apple01000
        int i = boost::lexical_cast<int>(TagInitial) + 1; // Should be as -> Apple01001

                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

                       I think this is throwing the exception, the cast seems invalid

 

        TagUId = boost::lexical_cast<std::string>(i);
        std::cout << "Tag ID .." << TagUId << endl;
}

I get below error message -

--
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::bad_lexical_cast> >'
  what():  bad lexical cast: source type value could not be interpreted as target
Aborted (core dumped)
--

Any clue?

~ Thanks!!

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--

Daniel

D'un coté s'étend le bien, de l'autre, le vide de la vie quotidienne. (F.Alberoni)

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