Best wishes,  Leon !
 LV> I have a string:
 LV> "a:\cpp\filename.cdm" and I want to change its file extension
 LV> so it reads  "a:\cpp\filename.trk"
    Use simply circle (such us _while_) and scan your string for a point.
If you'll find point - change last three symbols, if not - add point, three 
symbols of extantion and /0 symb. at the and of string.
char my_string[100];
// There must be functions getting sourse string...
int i=0;
while (my_string[i] != 0 || my_string[i] != '.')
  {
     i++;
  }
if (my_string[i] == '.')
  {
    i++;
    my_string[i] = 't';
    i++;
    my_string[i] = 'r';
    i++;
    my_string[i] = 'k';
    i++;
    my_string[i] = \0; // This is needed if your sourse extension contains 
only // two or one symbs.
}
  if(my_string[i] == \0)
  {
//  Same, but add a point character
   };
    ATTANTION: it will not work if any directory from path have extention.
                                               Hiding in the grave
                                                     Anton S. Maximenko
--- GoldED/386 2.50+
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