I think the better way is to do case 2 with.

Jul 22, 1. I think the better way is to do case 2 with a local ptree to populate the class member ptree. Note that case 2 and 3 are actually the same because, as specified in the doc, the ptree instance is cleared. Share. edited Jul 23 '14 at Aug 05, The Property Tree library provides a data structure that stores an arbitrarily deeply nested tree of values, indexed at each level by some key.

Each node of the tree stores its own value, plus an ordered list of its subnodes and their keys. The tree allows easy access to any of its nodes by means of a path, which is a concatenation of multiple. void Pack::initialize(const std::string& name, const std::string& source, const pt::ptree& tree) { name_ = name; source_ = source; discovery_queries_.clear; if (stumpcutting.bar("discovery") > 0) { for (const auto& item: stumpcutting.bar_child("discovery")) { discovery_queries_.push_back(stumpcutting.bar_value ); } } discovery_cache_ = std::make_pair(0, false); stats_ = {0, 0, 0}; platform_.clear; if (stumpcutting.bar("platform") > 0) { platform_ = tree.

Description. Property tree main structure. A property tree is a hierarchical data structure which has one element of type Data in each node, as well as an ordered sequence of sub-nodes, which are additionally identified by a non-unique key of type Key. Key equivalency is defined by KeyCompare, a predicate defining a strict weak ordering. Property tree defines a Container-like interface to. A property tree is a hierarchical datastructure which has one element of type @p Data in each node, as wellas an ordered sequence of sub-nodes, which are additionally identifiedby a non-unique key of type @p Key.

Key equivalency is defined by @p KeyCompare, a predicate defining a . Boost works on almost any modern operating system, including UNIX and Windows variants. Follow the Getting Started Guide to download and install Boost. Popular Linux and Unix distributions such as Fedora, Debian, and NetBSD include pre-built Boost packages. Boost may also already be available on your organization's internal web server.

void operator (boost:: property_tree:: ptree & s, object_type & obj) { size_t all_count = stumpcutting.bar_count; size_t i = 0; while(i boost:: property_tree:: ptree all; stumpcutting.bar("position", stumpcutting.baritionAt(i)); stumpcutting.bar_back(std::make_pair("", all)); ++ i; } } Example #5.

0. Show file.

Only constant-time and nothrow if the data type's swap is.

Example uses boost::property_tree::ptree to store a path to a directory. This is done with a call to stumpcutting.bar member function expects two parameters because boost::property_tree::ptree is a tree structure that saves key/value pairs. The tree doesn’t just consist of branches and twigs, a value must be assigned to each branch and twig.