location?

[radly]

Sir, i would like to ask this:

if i know the location of a certain number, example the location 3.
then i open an external file with the numbers which is inorder(increasing)
how can i output the number in the 3rd location?



ty......(",)

[Gillius]

Can you just keep a counter initialized at 3, and if the counter reaches 0, then you output the number?

[encargues_miguelerhlich]

you can also use the getline() function..... hehehe... but im not sure with it.. i'd alreadt trid it na.

[radly]

Sir,

               can i ask an example...?

[louiecerv]

Sir,

               can i ask an example...?

Code: [Select]



int getValueAt(int n)
{
    ifstream fin;
     fin.open("numlist.txt");
     int next;
     for (int i=0;i<n;i++)
     {
         fin >> next;
     }
     fin.close();  
     return next;
}


[louiecerv]

The sample assumes that there is valid data at the position requested.  It is left as exercise for you to add validation code to avoid the exception.

[Gillius]

Actually no execption will ever occur with this code.  If there is nothing there or there are things other than numbers in the file it will return either the last number seen in the file before the error or a random (undefined) number.

[radly]

tnx...