[boost] [Regex] regex_match() and substr()

21 Nov 2006

      Hi,

It seem that there is a problem when using the substr function in regex_match().
If you build and run the following code, it works fine. But try to comment the 6th line in findC function
and uncomment the 7th line. Under Visual C++ 2005, I get the following:
Debug assertion failed!
Program: ..........exe
File: ..........\vc\include\xstring
Line: 271
Expression: string iterators incompatible

Did I miss something?
Thanks

Eric

// main.cpp
#include <string>
#include <iostream>
#include <boost/regex.hpp>

bool findC(const std::string& iText)
{
    boost::regex regularExp(".*C.*");
    boost::smatch match;

    std::string sub( iText.substr(2) );

    if ( boost::regex_match(sub, match, regularExp) )
    //if ( boost::regex_match(iText.substr(2), match, regularExp) )
    {
        for ( int i=0; i<match.size(); ++i )
        {
            if (match[i].matched)
            {
                std::cout << "match[" << i << "] " << match[i] << std::endl;
                return true;
            }
        }
    }
    else
    {
        std::cout << "'C' not found in '" << iText.substr(2) << "'" << std::endl;
        return false;
    }
}

int main( int argc, char* argv[] )
{
    //findC("x:ABXDE");
    findC("x:ABCDE");

    return EXIT_SUCCESS;
}

[boost] [Regex] regex_match() and substr()

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