Re: [boost] Concatenating int value to string ..??

Subject: Re: [boost] Concatenating int value to string ..??
From: Rahul Mathur (srivmuk_at_[hidden])
Date: 2013-11-02 07:03:45

BTW' I am using gcc toolset of "gcc version 4.4.6 20120305 (Red Hat
4.4.6-4) (GCC)" with Boost-v1.54.

On Sat, Nov 2, 2013 at 3:49 PM, Rahul Mathur <srivmuk_at_[hidden]> wrote:

> YES, it's a run time exception could you suggest how to handle this ..
>
>
> On Sat, Nov 2, 2013 at 3:11 PM, Andrey Semashev <andrey.semashev_at_[hidden]
> > wrote:
>
>> On Saturday 02 November 2013 15:05:45 Rahul Mathur wrote:
>> >
>> > On Sat, Nov 2, 2013 at 2:39 PM, Andrey Semashev
>> >
>> > <andrey.semashev_at_[hidden]>wrote:
>> > > On Saturday 02 November 2013 14:14:18 Rahul Mathur wrote:
>> > > > 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
>> > > >
>> > > >         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_i
>> > > nj>
>> > > > ector<boost::bad_lexical_cast>
>> > > >
>> > > > >'
>> > > > >
>> > > >   what():  bad lexical cast: source type value could not be
>> interpreted
>> > >
>> > > as
>> > >
>> > > > target
>> > > > Aborted (core dumped)
>> > > > --
>> > > >
>> > > > Any clue?
>> > >
>> > > Apple01000 cannot be interpreted as an integer, that's why
>> > > boost::lexical_cast<int>(TagInitial) throws.
>> >
>> > I don't think so.
>> >
>> > It compiled successfully ( $ g++ test.cpp -o test -lboost_system
>> > -lboost_thread ) with GCC-Boost v-1.54 but while linking and execution
>> it
>> > gives error as shared.
>> >
>> > I think if I can know - How to support lexical or what is the build
>> command
>> > to support lexical analysis of Boost during Boost-v1.54 build process
>> with
>> > toolset of gcc? I do see lexical_cast.hpp file in include file of
>> > Boost-v1.54 while building.
>>
>> I don't understand. You get a run time exception. You do know that
>> lexical_cast operates at run time, don't you?
>>
>> PS: Don't top post, please.
>>
>>
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>
>