# Scalability preferences

Use the Scalability preference panel to configure options for dealing with large source files. Click Window > Preferences > C/C++ > Editor > Scalability to make changes.

Scalability Preference Options
Alert me when scalability mode will be turned on | If enabled, an information dialog pops up when a large file is opened with the C/C++ Editor which exceeds the specified line limit.
Enable scalability mode options when the number of lines in the file is more than | If the number of lines in a file exceeds the specified number the C/C++ Editor will enable scalability mode and all scalability mode options below will take effect.
Enable all scalability mode options | If enabled, all options below are enabled, too.
Disable editor live parsing | If enabled, parsing while typing will be disabled. This disables also other features like Outline view, semantic highlighting, folding, etc.
Disable semantic highlighting | If enabled, C/C++ identifiers will not be colored.
Disable syntax coloring | If enabled, no coloring of keywords, comments and literals is done.
Disable parsing-based content assist proposals | If enabled, content assist proposals which require parsing the file will not be available.
Disable content assist auto activation | If enabled, content assist will not be activated automatically on trigger sequences, like '.', '::' or '->'.

Coding aids

Customizing the C/C++ editor
Working with Content Assist

C/C++ editor preferences

Code Style preferences