From MSDN: IntelliSense may stop working under certain conditions. Use the following steps to determine why IntelliSense does not work for C ++ projects.
To investigate IntelliSense crashes in C ++ projects Make sure your Visual C ++ project does not contain compilation errors.
1) Makefile, . . IntelliSense Makefile.
2) , stdafx.h . Visual ++ . #include (C/++) /I ( ).
: * , , , ""
IntelliSense.
NB.
IntelliSenseIntelliSense ++ : ( , )
IntelliSense , , #include, - , #define. , , IntelliSense .