There are two ways you can access the source viewer:

• To view source for an issue, click an issue description in the issue list.
• To view source from within Source-Cross Reference, click xref in the component bar, navigate to an entity you want to look at and click the Source Code tab in the view.
  Note: The Source Code tab is only visible if there's source code available for the selected entity.

Functions in the source viewer are collapsed by default--except of course the one that contains the issue you're viewing. You can expand functions individually or all at once by using the expand or collapse buttons above the source viewer.

When assessing detected issues, it's handy to be able to track how an entity, such as a variable, is used across functions or the entire file. The source viewer has a search field in the upper right corner.

When you click an unknown (unhyperlinked) entity, such as a variable, your selection automatically populates the search field and each instance is highlighted in orange in the file. Orange markers in the right margin indicate each entity instance in the file.

If a whole line of code is highlighted in orange, it indicates that matching instances of the entity are located in the folded function. Expand the function to see additional entity search results.

You can navigate to each instance of the entity with these orange markers or with the previous and next arrows next to the search field.

Entity highlighting in the Source Viewer works only for single words. Multi-word entity search highlighting is not supported.

Red markers indicate detected issues in the current file:

Types (such as char, int, class, and this) and keywords (such as const, static, return, while, and if) appear in dark blue.

Preprocessor directives such as includes and defines are in dark red. Click the green include file link to navigate to the file.

Known entity identifiers (such as file and class identifiers) appear in blue. Clicking the blue text opens a pop-up menu:

Options in the pop-up menu allow you to:

• Show Declaration- see where the entity was declared in the source file
• Show Implementation- see where the entity was implemented
• Source-Cross Reference- expand your view to see where the entity is used across the program
• Show usage- see where the entity is referenced

Note: When you click Show Implementation or Show Declaration in the pop-up menu, the line in the source code where the entity is implemented or declared will appear with the line number highlighted in blue (clicking source cross-reference displays the entity's details in the right pane).

• Find in file- populates the search field and each instance is highlighted in the file in the same manner as described above