hard time dealing with these warnings

[emmanuel kitcher <ekitcher@…>]

I'm building with mvs2005 on ms win.7 but faced with these warnings:

1. warning C4244: 'argument' : conversion from 'float' to 'int', possible loss of data

2. warning C4267: 'return' : conversion from 'size_t' to 'int', possible loss of data

3. warning LNK4006: "public: void thiscall iris::SharedLibrary::open(class boost::filesystem::basic_path<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,struct boost::filesystem::path_traits>)" (?open@SharedLibrary@iris@@QAEXV?$basic_path@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@Upath_traits@filesystem@boost@@@filesystem@boost@@@Z) already defined in PNEngine.lib(SharedLibrary_windows.obj); second definition ignored

4. warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/OPT:REF' specification

Kindly assist me resolve these warnings. Thanks.

[viboes]

Please set the component in the future if you want it to be analyzed.

[viboes]

And be more explicit.