3.15 Example: unicspn

   /*  excspn.c - Sample code for unicspn. 
           
       Return initial length of first string not containing any  
       characters of the second string.  
   */ 
           
   #include <nunicode.h> 
   #include <assert.h> 
   void main(void) 
   { 
     nint result; 
      
     result = unicspn(L"testfile.dat", L"."); 
     assert (result == 8); 
     result = unicspn(L"server\\vol:file.ext", L".:\\"); 
     assert (result == 6); 
   }