1  typedef struct _IO_FILE FILE;
       2  void
       3  CompareRNAStructures (FILE * ofp, int start, int L, char *ss_true, char *ss)
       4  {
       5    int i;
       6    float agree = 0.;
       7    float pairs = 0.;
       8    float pairs_true = 0.;
       9    for (i = 0; i < L; i++)
      10      {
      11        pairs_true += 1.;
      12        agree += 1.;
      13      }
      14    if (((int) pairs % 2 != 0) || ((int) pairs_true % 2 != 0)
      15        || ((int) agree % 2 != 0))
      16      Die ("Error in CompareRNAStrutures(); odd number of paired nucleotides\n");
      17  }