How to check duplicates from a regex result?

[N0obie]

Hello, as my nickname states I'm a noob in C++

I'm parsing results from a file with regex and i get some duplicates, how i can check duplicates and only take 1 ?

Example of code:

std::tr1::match_results<std::string::const_iterator> res; 
std::tr1::regex_search(buf, res, rx);

I don't know how to proceed with it...

Thanks in advance <3

[N0obie]

Any help appreciated please, I meant how i can delete duplicates from the result array.

I can print them using a loop:

for ( int i=0; i<res.size(); ++i)
            {

			   std::cout << res[i] << std::endl;

            }

How will be for deleting duplicates before ? I'm very noob, need help, everything i test won't work...

EDIT:
It should work with this:

std::sort(res.begin(), res.end());
for(int i = 0; i < res.size() - 1; i++) {
    if (res[i] == res[i + 1]) {
        res.erase(res.at(i))
        i--;
    }
}

but it tells me res has no member erase and .at too :(

[Cubbi]

it's unclear why you'd want to remove some of the submatches from a match set and what kind of regular expression would need that. Perhaps you really needed to use a regex iterator?

Describe the problem more fully, what is the input? What is the regular expression?

[N0obie]

First, sorry for being a noob, this should be easy but it's making me trouble.

It's a simple regex for email format, it work and i can print results, but shows duplicates... I don't understand you well... If i change this

std::tr1::match_results<std::string::const_iterator> res;

it won't work.

I tried with this:
std::unique_copy (res.begin(), res.end(), std::ostream_iterator<std::string>(std::cout,"\n"));
It prints results but still the duplicates , what I'm doing wrong?

[N0obie]

Somebody give some hint please, i don't know...Still reading to try figure it out, but no luck yet.

Forgot to say buf is a string:
std::string buf;