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Boost.PropertyTree is a library that stores an arbitrarily nested tree of values, indexed by keys. It provides parsers and generators for XML, JSON, INI, and other formats, and supports easy access to any node by path.
The property tree iterators point to pairs of the form (key, tree) of type ptree::value_type. The standard loop for iterating through the children of the node at path therefore looks like: BOOST_FOREACH(const ptree::value_type &v, pt.get_child(path)) { // v.first is the name of the child. // v.second is the child tree. }
Property tree resembles (almost is) a standard container with value type of pair. It has the usual member functions, such as insert, push_back, find, erase, etc. These can of course be used to populate and access the tree. For example the following code adds key "pi" with data (almost) equal to mathematical pi value: ptree pt; pt. push_back (ptree:: value_type ("pi", ptree ("3. ...
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PTree is a web application that lets you draw and configure the power supply architecture of an electronic board. You can export and import data, view statistics, and report bugs or suggestions on GitHub.
With the class boost::property_tree::ptree, Boost.PropertyTree provides a tree structure to store key/value pairs. Tree structure means that a trunk exists with numerous branches that have numerous twigs. A file system is a good example of a tree structure. File systems have a root directory with subdirectories that themselves can have subdirectories and so on. To use boost::property_tree ...
Now the save () function. It is also 7 lines of code: void debug_settings::save(const std::string &filename) { // Create an empty property tree object. pt::ptree tree; // Put the simple values into the tree. The integer is automatically // converted to a string.
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namespace boost { namespace property_tree { template struct translator_between