Hello, I am working on a little class using the property_tree lib. MSVC 7.1, boost 1.33.1 and latest property_tree cvs from sandbox. I have simply Pimpled the boost::property_tree::ptree class and implemented a templated get<> to extract values from a conf file ... I don't know if it is fair to attach files to the mail so I just paste the header... Here the interface: #ifndef xml_config_t_H_INCLUDED #define xml_config_t_H_INCLUDED //--------------------------------------------------------------------- #include <string> #include <memory> //--------------------------------------------------------------------- //just tags ... namespace all { namespace core{ namespace detail { struct xml_t{}; struct ini_t{}; } static const core::detail::xml_t xml = core::detail::xml_t(); static const core::detail::ini_t ini = core::detail::ini_t(); }} //--------------------------------------------------------------------- namespace all { namespace core{ //the implementation namespace detail{class xml_config_impl;} class xml_config_t; }} //--------------------------------------------------------------------- class all::core::xml_config_t { public: ///Constructor xml_config_t(); ~xml_config_t(); ///this one calls read_xml void load(core::detail::xml_t, const std::string&); ///this one calls read_ini void load(core::detail::ini_t, const std::string&); public: ///the template get method .. calls ptree::get<T> .... template <typename T> T get(const std::string&, const T& defval = T()) const; private: //pimpl idiom std::auto_ptr<core::detail::xml_config_impl> impl; }; //--------------------------------------------------------------------------- #endif //xml_config_t_H_INCLUDED //--------------------------------------------------------------------------- The code compiles and it actually works ... that is fine. But the problem is that Compiling the class as a static lib, produces an huge library (~14 MB !!). I am compiling wiht /MT flag .. RTTI is off and there are just default settings ... Why such a huge library file? The templated method is defined for some builtin data types such as int, float, long ...etc ... Thanks for your attention ....
No idea yet? :) anyway ... if you want to take a look at the sources... http://www.dis.uniroma1.it/~carbone/property_tree/ Maybe I do something wrong and I have not well interpreted how to write a template method of a non template class .. But the result is so strange.... 24 MB for a lib is too much. Regards, Andrea Andrea Carbone wrote:
Hello,
I am working on a little class using the property_tree lib. MSVC 7.1, boost 1.33.1 and latest property_tree cvs from sandbox.
I have simply Pimpled the boost::property_tree::ptree class and implemented a templated get<> to extract values from a conf file ...
I don't know if it is fair to attach files to the mail so I just paste the header...
Here the interface:
#ifndef xml_config_t_H_INCLUDED #define xml_config_t_H_INCLUDED //--------------------------------------------------------------------- #include <string> #include <memory> //--------------------------------------------------------------------- //just tags ... namespace all { namespace core{
namespace detail { struct xml_t{}; struct ini_t{}; } static const core::detail::xml_t xml = core::detail::xml_t(); static const core::detail::ini_t ini = core::detail::ini_t(); }} //--------------------------------------------------------------------- namespace all { namespace core{ //the implementation namespace detail{class xml_config_impl;} class xml_config_t;
}} //--------------------------------------------------------------------- class all::core::xml_config_t { public: ///Constructor xml_config_t(); ~xml_config_t();
///this one calls read_xml void load(core::detail::xml_t, const std::string&); ///this one calls read_ini void load(core::detail::ini_t, const std::string&);
public: ///the template get method .. calls ptree::get<T> .... template <typename T> T get(const std::string&, const T& defval = T()) const;
private: //pimpl idiom std::auto_ptr<core::detail::xml_config_impl> impl; }; //--------------------------------------------------------------------------- #endif //xml_config_t_H_INCLUDED //---------------------------------------------------------------------------
The code compiles and it actually works ... that is fine.
But the problem is that Compiling the class as a static lib, produces an huge library (~14 MB !!).
I am compiling wiht /MT flag .. RTTI is off and there are just default settings ...
Why such a huge library file?
The templated method is defined for some builtin data types such as int, float, long ...etc ...
Thanks for your attention ....
Andrea Carbone wrote:
No idea yet? :)
anyway ... if you want to take a look at the sources...
http://www.dis.uniroma1.it/~carbone/property_tree/
Maybe I do something wrong and I have not well interpreted how to write a template method of a non template class ..
But the result is so strange.... 24 MB for a lib is too much.
I test your code with VC8 (no VC7 here), the result is 244K, no problem with your code. Have you tried compile other samplea in boost? And do they result in big size too? Best Regards gchen
gchen wrote:
Andrea Carbone wrote:
No idea yet? :)
anyway ... if you want to take a look at the sources...
http://www.dis.uniroma1.it/~carbone/property_tree/
Maybe I do something wrong and I have not well interpreted how to write a template method of a non template class ..
But the result is so strange.... 24 MB for a lib is too much.
I test your code with VC8 (no VC7 here), the result is 244K, no problem with your code.
Really? Fine ... I guess that I will rebuild the project from scratch. I have tried also with VC8 and I get an even bigger size ... :( Something must be wrong with the project setup ... I will compile also the examples and see the results... Thanks!!
Have you tried compile other samplea in boost? And do they result in big size too?
Best Regards gchen
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gchen