Re: [Dev-C++] Loading variables from files [C++]

Absolutely.

I just communicated the essence of the concept and left making it
bombproof as an exercise for the reader :-)

On Mon, Apr 28, 2008 at 5:31 PM, Per Westermark <pw...@ia...> wrote:
> But remember that you may quite often want to make the serialize a lot
>  more advanced, with versioning information.
>
>  Serialize is best when the same version of an application on the same
>  architecture will load a saved state.
>
>  Life may quickly get complicated if moving between different
>  architectures. If you write a 32-bit int and the other program expects
>  an int to be 64 bits large, the serialize will fail.
>
>  Another thing is when a new version have added more state information in
>  the class. It is quite probable that the end user expects a new version of
>  an application to be able to continue using the existing state
>  information.
>
>  I often make the serialize methods use text format (together with a bit of
>  glue helper functions) to make the serialize a bit more forgiving. It is
>  also possible to use binary formats. It's just a question about how to
>  handle potential overflows, and to make sure that missing/invalid fields
>  gets reasonable defaults.
>
>  /pwm
>
>
>
>  On Mon, 28 Apr 2008, Derek Clarke wrote:
>
>  > A good way is to add serialise operators to the class:
>  >
>  > ostream& hero::operator>>(ostream& stream)
>  > {
>  >   mapid >> stream;
>  >   posx >> stream;
>  >   posy >> stream;
>  >   return stream;
>  > }
>  >
>  > istream& hero::operator <<(istream& stream)
>  > {
>  >   mapid << stream:
>  >   posx << stream;
>  >   posy << stream;
>  >   return stream;
>  > }
>  >
>  > On Mon, Apr 28, 2008 at 6:40 AM, Samuel Hulley <tal...@gm...> wrote:
>  > > Hi,
>  > >     I am attempting to load variables from files but im not sure what
>  > >  todo because the variables are different types and sizes.
>  > >  Here is the source:
>  > >
>  > >  #pragma once
>  > >  #include <fstream>
>  > >  using namespace std;
>  > >
>  > >  class hero
>  > >  {
>  > >      public:
>  > >           void setname(string first, string last)
>  > >           {
>  > >                fname = first;
>  > >                lname = last;
>  > >                return;
>  > >           }
>  > >
>  > >           void setmap(int mp)
>  > >           {
>  > >                mapid = mp;
>  > >                return;
>  > >           }
>  > >
>  > >           void setpos(int x, int y)
>  > >           {
>  > >                posx = x;
>  > >                posy = y;
>  > >                return;
>  > >           }
>  > >
>  > >           void setmapx(int x)
>  > >           {
>  > >                posx = x;
>  > >                return;
>  > >           }
>  > >
>  > >           void setmapy(int y)
>  > >           {
>  > >                posy = y;
>  > >                return;
>  > >           }
>  > >
>  > >           int getmap()
>  > >           {
>  > >                return mapid;
>  > >           }
>  > >
>  > >           int getmapx()
>  > >           {
>  > >                return posx;
>  > >           }
>  > >
>  > >           int getmapy()
>  > >           {
>  > >                return posy;
>  > >           }
>  > >
>  > >           void loadinfo()
>  > >           {
>  > >                // This is where I will load the config.
>  > >           }
>  > >
>  > >      private:
>  > >           // Map variables.
>  > >           int mapid;
>  > >           int posx;
>  > >           int posy;
>  > >  };
>  > >
>  > >  Yours Truly
>  > >  Samuel Hulley.
>  > >
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