id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
11891,boost::program_options::validation_error throws std::out_of_range when original_token argument is empty,ce.andrade@…,Vladimir Prus,"The code below presents some bugs. 
{{{#!cpp
#include <iostream>
#include <stdexcept>
#include <boost/program_options.hpp>

using namespace std;
namespace po = boost::program_options;

int main() {
    try {
        // Works OK!
        //throw po::validation_error(po::validation_error::invalid_option_value);

        // Doesn't work and throw std::out_of_range exception
        //throw po::validation_error(po::validation_error::invalid_option_value,
                                   //""--test"");

        // Doesn't work as above: std::out_of_range exception
        //throw po::validation_error(po::validation_error::invalid_option_value,
                                   //""--test"", """");

        // Doesn't work properly. Although it doesn't throw out_of_range
        // exception, the value ""abc"" is no shown. The output is:
        // ""Error: the argument for option 'test' is invalid""
        throw po::validation_error(po::validation_error::invalid_option_value,
                                   ""--test"", ""abc"");
    }
    catch(std::exception& e) {
        cerr << ""Error: "" << e.what() << ""\n"";
        return -1;
    }
    catch(...) {
        cerr << ""Unknown error!"" << ""\n"";
        return -1;
    }

    return 0;
}
}}}


The first instantiation of {{{validation_error}}} works fine. The second and third version throws an {{{std::out_of_range}}} exception:

{{{
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::substr: __pos (which is 18446744073709551615) > this->size() (which is 0)
Abort trap: 6
}}}

The third version throws the correct exception, but doesn't show argument
{{{original_token}}} (3rd argument in the {{{validation_error}}} constructor). The output is:

{{{
Error: the argument for option 'test' is invalid
}}}

where should be

{{{
Error: the argument ('abc') for option 'test' is invalid
}}}

Since the last bug is different from the first and second, may I open another ticket?

This code has been tested using GCC 5.2.0 (GNU/Linux) and GCC 5.3.0 (Mac OS X), C++11, Boost 1.59, using the following command-line:

{{{
g++ -std=c++11 -ggdb boost_program_options.cpp -o test -L/opt/local/lib -lboost_program_options
}}}

I appreciate your help!",Bugs,new,To Be Determined,program_options,Boost 1.60.0,Problem,,,vladimir.prus@…