### CPP_DBG_TAB Environment Variable

The CPP_DBG_TAB environment variable affects how the debugger expands tab characters in a source or mixed view within a Source window, when CPP_DBG_TABGRID is set to 0 (or is not set). The value for this variable is an integer, indicating the number of spaces to convert a tab character into.Unlike CPP_DBG_TABGRID, CPP_DBG_TAB does not cause the debugger to place tabbed information in specific columns; it simply results in each tab in the displayed files being converted to the indicated number of spaces.

CPP_DBG_TABGRID Environment Variable