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

[Per W. <pw...@ia...>]

Decide if you want to use a binary file, or an ASCII file.

If you go for text, you can encode:

name="hello"
map=2
pos=<1,2>
...

and then

char buf[1000];
char *p,*name;

while (fgets(buf,sizeof(buf),f)) {
    p = strip_white(buf);
    if (p == '\n') continue;
    name = get_name(&p);
    if (name) {
        p = strip_white(p);
        if (p != '=') {
            complain();
            return -1;
        }
        p = strip_white(++p);
        if (!strcmp(name,"name")) {
            if (!get_string(p,my_string,sizeof(my_string))) return -1;
        } else if (!strcmp(name,"map")) {
            if (!get_integer(p,0,10)) return -1;
        } else if (!strcmp(name,"pos")) {
            if (!get_position(p,&pos)) return -1;
        } else {
            complain();
            return -1;
        }
    }
}

xx.setname(name);
xx.setpos(pos);
...

/pwm

On Mon, 28 Apr 2008, Samuel Hulley 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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