Re: [Boost-users] Concatenating int value to string ..??

Subject: Re: [Boost-users] Concatenating int value to string ..??
From: Rahul Mathur (srivmuk_at_[hidden])
Date: 2013-11-02 07:20:18

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

On Sat, Nov 2, 2013 at 3:43 PM, Daniel Anderson <wonixen_at_[hidden]> wrote:

> 2013/11/2 Rahul Mathur <srivmuk_at_[hidden]>
>
>> 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!!
>>
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>
>
>
>
> --
> Daniel
>
> D'un coté s'étend le bien, de l'autre, le vide de la vie quotidienne.*
> (F.Alberoni)*
>
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