/* File: t_merge.c
   Test Merge Sort routines
*/

#include <stdio.h>
#include "sorting.h"

main(int argc, char *argv[]) {
   data *A;
   index i,  n ;

   if (argc != 2) {
      fprintf(stderr, "Usage: t_merge filename\n") ;
      exit(1) ;
   }

   n = readarray(argv[1], &A) ; 
   if ( n <= 0 ) {
      fprintf(stderr, "oops, can't read\n" ) ;
      exit(1) ;
   }

   init_mergesort(n) ;

   mergesort(A,0,n-1) ;

#ifndef NDEBUG
   if (!checkarray(A,n)) {
      printf("Sorting routine INCORRECT!\n") ;
   }
   printarray(A,n) ;
#endif

}