Re: [Boost-users] Searching through a vector of tuples...

hmm haven't really tested it because i just dled boost lambda_tuple in the library but if it works than somehting like std::find_if(vec_of_some_tuples.begin(), vec_of_some_tuples.end(), boost::lambda::get<0>(boost::lambda::_1) == 5); On 8/13/07, David Abrahams wrote:

on Mon Aug 13 2007, "Graham Reitz" wrote:

...

typedef boost::tuples::tuple some_tuple;

std::vector vec_of_some_tuples;

// ... stuff some data into the vector

// ... search for a specific int in the vector of some_tuple

What would be a good method, using an stl algorithm, to search through the vector above to match only the int portion of the tuple (ignoring the double)?

Use std::find with a boost::transform_iterator over a function returning the first member of the tuple, then extract the resulting iterator's base() iterator.

HTH,

-- Dave Abrahams Boost Consulting http://www.boost-consulting.com

The Astoria Seminar ==> http://www.astoriaseminar.com

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