Re: [Boost-users] Modifying all matching elements in a Boost.MultiIndex Container

Subject: Re: [Boost-users] Modifying all matching elements in a Boost.MultiIndex Container
From: Joaquín M Lopez Munoz (joaquin_at_[hidden])
Date: 2015-12-31 14:33:03

Amit Prakash Ambasta <amit.prakash.ambasta <at> gmail.com> writes:

> 
> std::pair<index::iterator, index::iterator> iter = index.equal_range(value);
> 
> while(iter.first != iter.second) {
> 
> 
> Â  index.modify(
> Â  Â  iter.first,
> Â  Â  [](T& element) { ... }
> Â  );
> 
> Â  iter.first++;
> }
> 
> leads to segfaults and unexpected behavior.
> 
> What would be right way to approach this?

This is a classic, please follow these links for further info:

http://stackoverflow.com/questions/29013600/
modifying-key-ranges-in-a-boost-multi-index-map-having-hashed-non-unique-keys
http://lists.boost.org/boost-users/2006/03/18048.php

Joaquín M López Munoz
Telefónica