Merge from trunk revision 104c05c5284b7822d770ee51a7d91946c7e56d50.

2 files changed, 35 insertions, 7 deletions

diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index 41d75d9..6e2fcb6 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -482,6 +482,10 @@ struct cpp_options
      in C11 and C++11.  */
   unsigned char c11_identifiers;
 
+  /* Nonzero means extended identifiers allow the characters specified
+     in C++23.  */
+  unsigned char cxx23_identifiers;
+
   /* Nonzero for C++ 2014 Standard binary constants.  */
   unsigned char binary_constants;
 
@@ -497,6 +501,9 @@ struct cpp_options
   /* Nonzero for the '::' token.  */
   unsigned char scope;
 
+  /* Nonzero for the '#elifdef' and '#elifndef' directives.  */
+  unsigned char elifdef;
+
   /* Nonzero means tokenize C++20 module directives.  */
   unsigned char module_directives;
 
@@ -883,6 +890,7 @@ enum cpp_builtin_type
   BT_SPECLINE = 0,		/* `__LINE__' */
   BT_DATE,			/* `__DATE__' */
   BT_FILE,			/* `__FILE__' */
+  BT_FILE_NAME,			/* `__FILE_NAME__' */
   BT_BASE_FILE,			/* `__BASE_FILE__' */
   BT_INCLUDE_LEVEL,		/* `__INCLUDE_LEVEL__' */
   BT_TIME,			/* `__TIME__' */
@@ -1375,6 +1383,20 @@ 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 *);
 
+/* cpp_get_converted_source returns the contents of the given file, as it exists
+   after cpplib has read it and converted it from the input charset to the
+   source charset.  Return struct will be zero-filled if the data could not be
+   read for any reason.  The data starts at the DATA pointer, but the TO_FREE
+   pointer is what should be passed to free(), as there may be an offset.  */
+struct cpp_converted_source
+{
+  char *to_free;
+  char *data;
+  size_t len;
+};
+cpp_converted_source cpp_get_converted_source (const char *fname,
+					       const char *input_charset);
+
 /* In pch.c */
 struct save_macro_data;
 extern int cpp_save_state (cpp_reader *, FILE *);
@@ -1445,6 +1467,7 @@ class cpp_display_width_computation {
 /* Convenience functions that are simple use cases for class
    cpp_display_width_computation.  Tab characters will be expanded to spaces
    as determined by TABSTOP.  */
+
 int cpp_byte_column_to_display_column (const char *data, int data_length,
 				       int column, int tabstop);
 inline int cpp_display_width (const char *data, int data_length,
@@ -1457,4 +1480,7 @@ int cpp_display_column_to_byte_column (const char *data, int data_length,
 				       int display_col, int tabstop);
 int cpp_wcwidth (cppchar_t c);
 
+bool cpp_input_conversion_is_trivial (const char *input_charset);
+int cpp_check_utf8_bom (const char *data, size_t data_length);
+
 #endif /* ! LIBCPP_CPPLIB_H */
diff --git a/libcpp/include/line-map.h b/libcpp/include/line-map.h
index 40919d0..464494b 100644
--- a/libcpp/include/line-map.h
+++ b/libcpp/include/line-map.h
@@ -563,7 +563,7 @@ struct GTY((tag ("2"))) line_map_macro : public line_map {
 #define linemap_assert_fails(EXPR) (! (EXPR))
 #endif
 
-/* Get whether location LOC is an ad-hoc, ordinary or macro location.  */
+/* Get whether location LOC is an ordinary location.  */
 
 inline bool
 IS_ORDINARY_LOC (location_t loc)
@@ -571,18 +571,14 @@ IS_ORDINARY_LOC (location_t loc)
   return loc < LINE_MAP_MAX_LOCATION;
 }
 
+/* Get whether location LOC is an ad-hoc location.  */
+
 inline bool
 IS_ADHOC_LOC (location_t loc)
 {
   return loc > MAX_LOCATION_T;
 }
 
-inline bool
-IS_MACRO_LOC (location_t loc)
-{
-  return !IS_ORDINARY_LOC (loc) && !IS_ADHOC_LOC (loc);
-}
-
 /* Categorize line map kinds.  */
 
 inline bool
@@ -1674,6 +1670,12 @@ class rich_location
   /* Destructor.  */
   ~rich_location ();
 
+  /* The class manages the memory pointed to by the elements of
+     the M_FIXIT_HINTS vector and is not meant to be copied or
+     assigned.  */
+  rich_location (const rich_location &) = delete;
+  void operator= (const rich_location &) = delete;
+
   /* Accessors.  */
   location_t get_loc () const { return get_loc (0); }
   location_t get_loc (unsigned int idx) const;