* cppfiles.c: Move all default-#defines to top of file.

	(open_include_file): Replace by lookup_include_file.
	(read_with_read, read_file): Merged into read_include_file.
	(stack_include_file, purge_cache): New functions.
	(close_cached_fd): Delete.
	(lookup_include_file, read_include_file, _cpp_pop_file_buffer):
	Cache the in-memory buffer, not the file descriptor.

	* cpphash.h (struct include_file): Add buffer, st, refcnt,
	mapped fields.
	(xcnew): New utility macro.
	(DO_NOT_REREAD, NEVER_REREAD): Move up by struct include_file.
	* cpplib.h (struct cpp_buffer): Remove mapped field.

	* cpplex.c (parse_string): Accept backslash space newline as a
	line continuation.
	(lex_line): Likewise.
	(_cpp_get_token): Remove hard limit on macro nesting.

testsuite:
	* gcc.dg/cpp/backslash.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36347 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 3 deletions

diff --git a/gcc/cpplib.h b/gcc/cpplib.h
index 9122acdec89..9793bc0e922 100644
--- a/gcc/cpplib.h
+++ b/gcc/cpplib.h
@@ -246,9 +246,6 @@ struct cpp_buffer
      or for -Wtraditional, and only once per file (otherwise it would
      be far too noisy).  */
   char warned_cplusplus_comments;
-
-  /* True if this buffer's data is mmapped.  */
-  char mapped;
 };
 
 struct file_name_map_list;