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re PR c/29172 (--combine can't handle #pragma once)

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gcc
	PR c/29172:
	* c-opts.c (c_common_parse_file): Call cpp_clear_file_cache.
libcpp
	PR c/29172:
	* internal.h (struct cpp_reader) <file_hash_entries>: Changed
	type.
	<file_hash_entries_allocated, file_hash_entries_used>: Removed.
	* files.c (FILE_HASH_POOL_SIZE): New macro.
	(struct file_hash_entry_pool): New.
	(destroy_all_cpp_files): New function.
	(allocate_file_hash_entries): Allocate a file_hash_entry_pool.
	(new_file_hash_entry): Update.
	(free_file_hash_entries): New function.
	(_cpp_cleanup_files): Call free_file_hash_entries and
	destroy_all_cpp_files.
	(cpp_clear_file_cache): New function.
	* include/cpplib.h (cpp_clear_file_cache): Declare.

From-SVN: r130656
This commit is contained in:
Tom Tromey 2007-12-06 18:56:26 +00:00 • committed by Tom Tromey
parent 3ef50b629c
commit 97f6bd406c
6 changed files with 87 additions and 8 deletions
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libcpp/include/cpplib.h
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@ -862,6 +862,7 @@ extern cpp_dir *cpp_get_dir (struct _cpp_file *);
extern cpp_buffer *cpp_get_buffer (cpp_reader *);
extern struct _cpp_file *cpp_get_file (cpp_buffer *);
extern cpp_buffer *cpp_get_prev (cpp_buffer *);
extern void cpp_clear_file_cache (cpp_reader *);
/* In cpppch.c */
struct save_macro_data;