boost::property_tree::info_parser breaks on spaces in value

Question

I am facing an issue where I have a configuration file and I parse it with boost::property_tree:info_parser.

I use this code to do the work:

struct _         


        

Answer 1

It was Undefined Behaviour, specifically

The static initialization fiasco

The manifestation here is quite subtle!

Valgrind told me that info_parser::is_simple_data is accessing a string freed. That string would be the local static. Both are being called from __run_exit_handlers() but not in any particular order! See the linked C++FAQ entry for explanations.

Solution, don't depend on global statics with RAII:

int main()
{
    _Config Config;
    Config.Load();
}

is just fine, see it Live On Coliru