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Control > Show > DifferencesControl > Show > Differences shows the textual differences between different versions of a controlled object. Differences also shows the differences between individual objects, including uncontrolled ones. Differences are displayed in a read-only window. This command displays the Show Differences dialog box.
Information regarding the difference dialog box under Apex/ClearCase can be found at CM Diff.
By default, blanks and tabs at the beginnings and ends of lines are not considered in computing differences.
Differences Dialog Box Fields
Filename/Element Fields
These fields specify the objects to be compared. Each object may be identified using a filename or element name.
A file pathname is specified (in File #1 or File #2 field) and a version indicator or number may be specified in the Version field. The version is selected from the current history of the file.
The fields Subsystem, Element, History, and Version must be specified. (See Version and Element Names).
For an uncontrolled object, the Filename option must be used. The Version field is ignored in this case.
Exchange #1 and #2 button
This button exchanges the two objects to be compared. The differences between the objects are always presented as changes applied to the first object to produce the second object.
Options check boxes
- Ignore leading and trainling whitespace
Check this box to have the comparison ignore blanks and tabs at the beginning and end of lines.
- Ignore all whitespace
Check this box to have the comparison ignore all blanks and tabs on lines.
- Ignore whitespace around Ada constructs
Check this box to have special Ada differencing performed.
- Ignore case
Check this box to have the comparison be case-insensitive.
- Ignore case of Ada constructs
Check this box to have the comparison be case-insensitive of Ada constructs. Applies only when the Ignore whitespace around Ada constructs is also checked.
- Ignore Ada comments
Check this box to have the comparison treat Ada comments as whitespace. Applies only when the Ignore whitespace around Ada constructs is also checked.
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