C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  save an object          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message danny van elsen Guest Posted: Sat Dec 18, 2004 11:55 am    Post subject: save an object hello all, in my application, I want to save an object to a file: what would be the best way to do this? binary or text? self written or existing library? thanks for any answer, Danny. Back to top Alf P. Steinbach Guest Posted: Sat Dec 18, 2004 11:57 am    Post subject: Re: save an object * danny van elsen: Quote: hello all, in my application, I want to save an object to a file: what would be the best way to do this? binary or text? self written or existing library? thanks for any answer, Well, you might check out Niels Bohr's answer to the question: "How many tails does a dog have?". -- A: Because it messes up the order in which people normally read text. Q: Why is it such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? Back to top EventHelix.com Guest Posted: Sat Dec 18, 2004 12:15 pm    Post subject: Re: save an object If it is a windows application, you have two options: - Use the built in serialization support in MFC. Fairly complicated objects containing arrays/lists of objects can be saved. - Use the XmlSerializer for .NET applications. Your objects will be saved in XML. Deepa -- http://www.EventHelix.com/EventStudio EventStudio 2.5 - Generate sequence diagrams from plain text input Back to top matej.kovac@gmail.com Guest Posted: Sat Dec 18, 2004 1:24 pm    Post subject: Re: save an object RTFW! http://www.parashift.com/c++-faq-lite/serialization.html Back to top David Harmon Guest Posted: Sat Dec 18, 2004 6:53 pm    Post subject: Re: save an object On 18 Dec 2004 04:15:51 -0800 in comp.lang.c++, "EventHelix.com" <eventhelix (AT) gmail (DOT) com> wrote, Quote: If it is a windows application, you have two options: Oh come on! Those two are just the options you have _only_ on a windows platform, in addition to all the many platform-independent options you could use without selling your soul^W^W^W^W. The first thing I would look at is the Boost serialization library. Back to top Mike Wahler Guest Posted: Sat Dec 18, 2004 9:14 pm    Post subject: Re: save an object "danny van elsen" <danny_van_elsen (AT) hotmail (DOT) com> wrote Quote: hello all, in my application, I want to save an object to a file: what would be the best way to do this? "Best" depends upon context and opinion. Quote: binary or text? Text will be more portable. Binary will constrain use to a specific platform/implementation (or 'category' of them). The 'trade-off' is that binary can often have better performance than text (the 'footprint' will usually be smaller). Quote: self written Self-written is always an option. It has the advantage that it you can make it work exactly how you want, and you can modify it at will. Quote: or existing library? Existing libraries can save large amounts of time and effort, but sometimes might restrict you more than you'd like (though many libs come with source, and if you understand it, you could change it -- but often this imposes usage restrictions) If you're looking for a 'get it done as quickly as possible' solution, try to find a library that does what you need. If you can't, you could try modifying a library or creating your own. If your motivation is learning, or functionality for which you can't find a library, or perhaps simply 'for fun', try writing it yourself. IMO the most pertinent question to ask yourself when determining how to serialize data, is "how/when/where will this data need to be accessed?" HTH, -Mike Back to top danny van elsen Guest Posted: Sun Dec 19, 2004 10:11 pm    Post subject: Re: save an object tanx! On Sat, 18 Dec 2004 05:24:38 -0800, matej.kovac wrote: Quote: http://www.parashift.com/c++-faq-lite/serialization.html Back to top danny van elsen Guest Posted: Mon Dec 20, 2004 9:26 pm    Post subject: Re: save an object Quote: Well, you might check out Niels Bohr's answer to the question: "How many tails does a dog have?". does it involve talking chinese to people? Back to top E. Robert Tisdale Guest Posted: Mon Dec 20, 2004 9:52 pm    Post subject: Re: save an object danny van elsen wrote: Quote: In my application, I want to save an object to a file. What would be the best way to do this? I used Google http://www.google.com/ to seach for +"C++" +"serialization" and I found lots of stuff including http://www.parashift.com/c++-faq-lite/serialization.html Back to top Howard Guest Posted: Mon Dec 20, 2004 10:04 pm    Post subject: Re: save an object "danny van elsen" <danny_van_elsen (AT) hotmail (DOT) com> wrote Quote: Well, you might check out Niels Bohr's answer to the question: "How many tails does a dog have?". does it involve talking chinese to people? No, but it is "any answer", which is what you thanked us for. Careful what you ask for...some joker just might give it to you! 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