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authorNeil Booth <neilb@earthling.net>2000-12-09 12:06:37 +0000
committerNeil Booth <neil@gcc.gnu.org>2000-12-09 12:06:37 +0000
commit28e0f040343cefbd1de6c067394ea1415fab83f8 (patch)
tree03c1db8498e9dbaa46fcb7c0ed5437d1bbb36e07 /gcc/cppfiles.c
parent1b32f732bf637e9783bf840d04cf4039944b3339 (diff)
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cppfiles.c (NEVER_REREAD, [...]): Move from cpphash.h.
* cppfiles.c (NEVER_REREAD, DO_NOT_REREAD): Move from cpphash.h. * cpphash.h (NEVER_REREAD, DO_NOT_REREAD, ABSOLUTE_PATH): Delete. * cpplex.c (parse_identifier): Improve diagnostic. (_cpp_lex_token): Return unconditionally at the end of a directive. * cpplib.c (read_flag): Verify legality of each flag. (end_directive): Resotre pfile->skipping before skip_rest_of_line. (do_line): Use the new read_flag. * cppmacro.c (struct cpp_macro, parse_arg, replace_args, check_macro_redefinition, parse_params): Rename var_args to variadic. From-SVN: r38150
Diffstat (limited to 'gcc/cppfiles.c')
-rw-r--r--gcc/cppfiles.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/cppfiles.c b/gcc/cppfiles.c
index 4508034..aeca30d 100644
--- a/gcc/cppfiles.c
+++ b/gcc/cppfiles.c
@@ -80,6 +80,16 @@ struct include_file
unsigned char defined; /* cmacro prevents inclusion in this state */
};
+/* The cmacro works like this: If it's NULL, the file is to be
+ included again. If it's NEVER_REREAD, the file is never to be
+ included again. Otherwise it is a macro hashnode, and the file is
+ to be included again if the macro is defined or not as specified by
+ DEFINED. */
+#define NEVER_REREAD ((const cpp_hashnode *)-1)
+#define DO_NOT_REREAD(inc) \
+((inc)->cmacro && ((inc)->cmacro == NEVER_REREAD \
+ || ((inc)->cmacro->type == NT_MACRO) == (inc)->defined))
+
static struct file_name_map *read_name_map
PARAMS ((cpp_reader *, const char *));
static char *read_filename_string PARAMS ((int, FILE *));