Hello, Phil.

On Tue, Aug 02, 2016 at 11:17:06AM -0400, Phil wrote:

> src/emacs -Q -eval '(progn (insert "#include \"foo/bar.h\"")(c++-mode)(backward-char 11)(delete-char 1) (insert "\""))'

> Expected: The header name "foo/bar.h" is fontified as string.
> Actual: the header name isn't fontified.

Thanks for taking the trouble to report this.

Could you please try out the following patch to CC Mode, and either
confirm that it solves the problem, or tell me what's still not working
properly.  Thanks in advance!  (The file to patch is in directory
.../lisp/progmodes.)