Navigating from within the Source Pane
You can navigate to a function in the Source pane.
Navigate to the evaluate() function call on line 32, by right-clicking and selecting Navigate to File or Function from the context menu.
NOTE: If more than one result is found from the navigation operation, then all the results are shown in the Lookup File or Function view. You can easily click through the results to navigate to the location you want.
Note that since the evaluate() function is in a different file, evalexpr.c, that source file opens for viewing in addition to the source file already open containing the main() function.