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Just to be clear. I work with some 30 files open. Maybe 15 of them are in tabs across the top of VS. If I want to see something from a file that is not displayed I use the black triangle on the right to select the file I want to see. Its moved to the leftmost tab and the other files are rotated right. I keep all files open so I can use Find-In-All-Open-Files function. I keep a small number of files closed because these never change.
I never open or close any files while working. The Clang rescan is not triggered by a file open or close. I don’t see any pattern as to what starts it. I am usually just typing some code and in the middle of typing it takes off.
I any case, I am not pushing you to fix it. I can work around it.
When you say I can set “Enable Clang IntelliSense by default” false to disable Clang, I *thought* that would only enable/disable Clang at VS open. Does that enable/disable it for the current running session?
Thanks
Sometimes when I change a file (I have not seen an identifiable pattern, like .h files or some such) a small box pops up with a message saying something like “Clang … rebuilding…” (sorry I have not recorded the exact terminology) and says its scanning file 1 of 31, then 2 and 3 and so on. It takes a minute or so to run. I am on an older computer running VS2008, so perhaps its my setup Its annoying. Also if I right-click on a variable and select “show definition” it many times does the same thing. I instead just use the VS “Find in all Open Files” function which works instantaneously.
I set Options->Text Editor->c/c++(VisualGDB)->Advanced->Indexing All Index options to False and it seems to fix the problem. I don’t need/want all the clang auto-complete functionality.
I never closed any files. I keep all source files open all the time.
I had a problem where many functions and variable names were showing up with very strange highlighting (things like a function in white text with a black background). When searching for the source of the problems I found the errors. In the end, I closed and reopened VS and the problems went away. I have turned off lots of clang functionality as I got tired of changing a file then waiting while clang rescanned all my files to rebuild its database. I do like its outlining. I think there should be an easier way to configure clang. Digging through the options screen with dozens of values that can be changed with no hints of what each field does is frustrating.
