cout << print numbers with commas

I would like to format the number output from cout (or printf) with commas. I have tried to use the SetLocale() to change from the standard "C" locale to several different locales but the output dosn't change. I am using VC++ 5.0.
LeeRAsked:
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q2guoCommented:
I think you will have to rewrite the << operator
for the type of number you are talking about.

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nietodCommented:
you will have to write it your self.  What you can do is format the number to a string (you can use << to send the number to a string stream)  Then count the digits and insert the commas.  I'd give you an example, but I don't have time now.
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Ready4DisCommented:
Here...

It is my own method...
#include <conio.h>

void display(int number)
{
 int ctr, amount;
 char temp[8];
 ctr=0;
 do
 {
  ctr++;
  temp[ctr]=number%10+'0';
  number=number/10;
  if (ctr==3||ctr==6||ctr==9)
  {
       temp[ctr+1]=',';
       ctr++;
  }
 } while (number>0);
      for (amount=ctr;amount>0;amount--)
      {
            printf("%c",temp[amount]);
      }
}

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LeeRAuthor Commented:
Thank you all for your responses to my question. I thought that printf would look at the settings in the "locale" struct and do formating for me, but I guess not. Oh well. Thanks again.
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