Parse csv file into vector and convert to appropriate data types

Its easy enough to test your loop(s) to

get a line
split a line into comma separated 'variables'

- I'd concentrate on that first ... this though

getline(file, line, '\n');

  while (getline(file, line, '\n')) //find the endline charcater

ok, so, you're going to get a line, immediately discard it and get another line (in the while) - is there a reason for discarding the first line ? I understand if its a 'header' line, but then, you may wish to comment that fact in the code, so that anyone else reading gets the 'why'

this code - Im presuming is just testing

dd.a= stod(vec[0]);
       dd.b = stod(vec[1]);

you wouldnt really hard code all the way to vec[9] would you ? you would use a FOR loop for if you were 100% sure there was only ever going to be 10 columns, or, use an iterator on 'vec' - personally, I would use the iterator, keep a count, and if you end up with more than 10 columns stop the run

[edit] ok, I looked back and saw this

typedef struct {
      int a=0;
      int b=0;
      int c=0;
      double d=0;
       double e=0;
       double f=0;
       double g=0;
       int h=0;
      double i=0;
       double j=0;
   }somenumbers;

is it your intent to parse each line of the 'csv' file into a 'somenumbers' struct ? if so, everything I said still applies - in that case I'd probably still use an iterator/counter to assign from the vec[] to somenumbers, as in

...
switch(fieldNumber) :
case 0 : a = convertToInt(vec[fieldNumber]);   
case 1 : b = convertToInt(vec[fieldNumber]);   
...

where convertToInt is some function you have to convert from a string to an Int, you'd also need a convertToDouble I guess

[/edit]