Overall summary section

The overall summary section gives the overall statistics of the comparison process. Figure 1 is a representative example of an overall summary section.

Figure 1. Example of the overall summary section of the comparison listing

 1         LINE COMPARE SUMMARY AND STATISTICS

 2  2 NUMBER OF LINE MATCHES    8  1  TOTAL CHANGES (PAIRED+NONPAIR
 3  0 REFORMATTED LINES         9  1  PAIRED CHANGES (REFM+PAIRED
 4  1 NEW FILE LINE INSERTIONS 10  0  NON-PAIRED INSERTS
 5  1 OLD FILE LINE DELETIONS  11  0  NON-PAIRED DELETES
 6  3 NEW FILE LINES PROCESSED
 7  3 OLD FILE LINES PROCESSED

 12  LISTING-TYPE = OVSUM   13  COMPARE-COLUMNS =    1:72
 14  LONGEST-LINE = 80
 15  PROCESS OPTIONS USED: NONE

Figure 1 shows the following information about the comparison:

1: The first word of the title tells you the type of comparison. The overall summary is provided for BYTE, FILE, LINE, and WORD compare types.
2: Of the 3 lines in each file, 2 from the new file matched 2 corresponding lines of the old file. These are called matching lines.
3: There are no reformatted lines.
4: There is 1 inserted line in the new file.
5: The old file contains 1 line that is missing from the new source file.
6: 3 lines from the new file were processed.
7: The old file also has a total of 3 lines.
8: The total number of changes is a summation of items 9 , 10 , and 11 . It is a convenient number that best represents the change activity of the two compared files.
9: The total number of reformats and paired changes. This represents a sum of items that may be considered to be a single change. That is, some changes are made in pairs and need only be counted as a single instance of a change.
10: There were no non-paired inserts. Non-paired inserts are changes to the new file that have no relationship to the old file (that is, no deletes from the old file occurred in the same area).
11: There were no non-paired deletes. Non-paired deletes are changes to the old file that have no relationship to the new file (that is, no inserts to the new file occurred in the same area).
12: The listing type is OVSUM. This is the listing type option selected for the comparison. Other options are: DELTA, CHNG, and LONG.
13: SuperC compared columns 1 through 72. This value provides a convenient reference for confirming if all the columns in the line have been compared or only some portion of the line.
14: The longest line length of any line in either file is 80 characters.
15: No process options were used.