clang-format breaks C syntax when breaking a C comment before a forward slash

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Bugzilla Link	PR21271
Status	NEW
Importance	P normal
Reported by	weiehpcc@gmail.com
Reported on	2014-10-14 07:39:20 -0700
Last modified on	2015-07-15 05:25:13 -0700
Version	3.6
Hardware	PC Windows NT
CC	djasper@google.com, klimek@google.com, malcolm.parsons@gmail.com
Fixed by commit(s)
Attachments	regrCCommentSlash.h (291 bytes, text/plain) commentslash.h (95 bytes, text/x-chdr)
Blocks
Blocked by
See also

Created attachment 13200
Example source file for reproducing the problem

Again (as in bug 21259 and bug 21261), in sequences of C comments, clang-format
gets confused.

In this case, a single "/" inside the second comment leads clang-format to
ending the comment inside the original one, which itself produces syntax
errors. See attachement for an example.

Again, the configuration used can be found in attachment 13195.

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Attached regrCCommentSlash.h (291 bytes, text/plain): Example source file for reproducing the problem

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This happens without a sequence of C comments directly following each other:

$ cat commentslash.h

/* Blah blah blah blah blah blah blah blah blah blah process the file
/foo/bar/baz/quux
 **/

$ clang-format-3.6 --style=LLVM commentslash.h

/* Blah blah blah blah blah blah blah blah blah blah process the file
 */foo/bar/baz/quux
 **/

Expected:

/* Blah blah blah blah blah blah blah blah blah blah process the file
 * /foo/bar/baz/quux
 **/

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Attached commentslash.h (95 bytes, text/x-chdr): commentslash.h