diff options
author | tromey <> | 2007-11-12 00:38:48 +0000 |
---|---|---|
committer | tromey <> | 2007-11-12 00:38:48 +0000 |
commit | 3fe872b1541b79be83e76f47384bb8ab0485b869 (patch) | |
tree | 3f463456ccd4e5d3927d4137b115dbd7bb507c51 /libcpp | |
parent | 4630b61d3f6a4de98865c5c42f60d4148670d65e (diff) |
gcc/cp
PR c++/17577:
* lex.c (handle_pragma_implementation): Use cpp_included_before.
gcc/testsuite
PR c++/17577:
* g++.dg/ext/pr17577.h: New file.
* g++.dg/ext/pr17577.C: New file.
libcpp
PR c++/17557:
* include/cpplib.h (cpp_included_before): Declare.
* files.c (struct file_hash_entry) <location>: New field.
(_cpp_find_file): Initialize new field.
(make_cpp_dir): Likewise.
(cpp_included_before): New function.
Diffstat (limited to 'libcpp')
-rw-r--r-- | libcpp/ChangeLog | 14 | ||||
-rw-r--r-- | libcpp/files.c | 24 | ||||
-rw-r--r-- | libcpp/include/cpplib.h | 1 |
3 files changed, 39 insertions, 0 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index c7cfa174709..4c33bd7d8d3 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,3 +1,17 @@ +2007-11-11 Tom Tromey <tromey@redhat.com> + + PR c++/17557: + * include/cpplib.h (cpp_included_before): Declare. + * files.c (struct file_hash_entry) <location>: New field. + (_cpp_find_file): Initialize new field. + (make_cpp_dir): Likewise. + (cpp_included_before): New function. + +2007-11-05 Tom Tromey <tromey@redhat.com> + + * include/line-map.h (LINEMAP_POSITION_FOR_COLUMN): Wrap in + do-while. + 2007-11-01 Tom Tromey <tromey@redhat.com> PR preprocessor/30805: diff --git a/libcpp/files.c b/libcpp/files.c index 73f88bb3cde..ae2f2945d9e 100644 --- a/libcpp/files.c +++ b/libcpp/files.c @@ -142,6 +142,7 @@ struct file_hash_entry { struct file_hash_entry *next; cpp_dir *start_dir; + source_location location; union { _cpp_file *file; @@ -521,6 +522,7 @@ _cpp_find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir, bool f entry = new_file_hash_entry (pfile); entry->next = *hash_slot; entry->start_dir = start_dir; + entry->location = pfile->line_table->highest_location; entry->u.file = file; *hash_slot = entry; @@ -533,6 +535,7 @@ _cpp_find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir, bool f entry = new_file_hash_entry (pfile); entry->next = *hash_slot; entry->start_dir = pfile->bracket_include; + entry->location = pfile->line_table->highest_location; entry->u.file = file; *hash_slot = entry; } @@ -543,6 +546,7 @@ _cpp_find_file (cpp_reader *pfile, const char *fname, cpp_dir *start_dir, bool f entry = new_file_hash_entry (pfile); entry->next = *hash_slot; entry->start_dir = pfile->quote_include; + entry->location = pfile->line_table->highest_location; entry->u.file = file; *hash_slot = entry; } @@ -993,6 +997,7 @@ make_cpp_dir (cpp_reader *pfile, const char *dir_name, int sysp) entry = new_file_hash_entry (pfile); entry->next = *hash_slot; entry->start_dir = NULL; + entry->location = pfile->line_table->highest_location; entry->u.dir = dir; *hash_slot = entry; @@ -1036,6 +1041,25 @@ cpp_included (cpp_reader *pfile, const char *fname) return entry != NULL; } +/* Returns TRUE if a file FNAME has ever been successfully opened + before LOCATION. This routine is not intended to correctly handle + filenames aliased by links or redundant . or .. traversals etc. */ +bool +cpp_included_before (cpp_reader *pfile, const char *fname, + source_location location) +{ + struct file_hash_entry *entry; + + entry = (struct file_hash_entry *) + htab_find_with_hash (pfile->file_hash, fname, htab_hash_string (fname)); + + while (entry && (entry->start_dir == NULL || entry->u.file->err_no + || entry->location > location)) + entry = entry->next; + + return entry != NULL; +} + /* Calculate the hash value of a file hash entry P. */ static hashval_t diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h index ff13cd6b532..01e982fbceb 100644 --- a/libcpp/include/cpplib.h +++ b/libcpp/include/cpplib.h @@ -853,6 +853,7 @@ extern unsigned char *cpp_quote_string (unsigned char *, const unsigned char *, /* In cppfiles.c */ extern bool cpp_included (cpp_reader *, const char *); +extern bool cpp_included_before (cpp_reader *, const char *, source_location); extern void cpp_make_system_header (cpp_reader *, int, int); extern bool cpp_push_include (cpp_reader *, const char *); extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); |