diff options
Diffstat (limited to 'gcc/line-map.h')
| -rw-r--r-- | gcc/line-map.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/line-map.h b/gcc/line-map.h index fe5e3cc..1f9a47d 100644 --- a/gcc/line-map.h +++ b/gcc/line-map.h @@ -25,7 +25,9 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. /* The logical line FROM_LINE maps to physical source file TO_FILE at line TO_LINE, and subsequently one-to-one until the next line_map - structure in the set. */ + structure in the set. INCLUDED_FROM is an index into the set that + gives the line mapping at whose end the current one was included. + File(s) at the bottom of the include stack have this set to -1. */ struct line_map { const char *to_file; @@ -34,7 +36,7 @@ struct line_map int included_from; }; -/* Contains a sequence of chronological line_map structures. */ +/* A set of chronological line_map structures. */ struct line_maps { struct line_map *maps; @@ -75,6 +77,7 @@ extern struct line_map *lookup_line of the #include, or other directive, that caused a map change. */ #define LAST_SOURCE_LINE(MAP) SOURCE_LINE (MAP, (MAP)[1].from_line - 1) +/* Non-zero if the map is at the bottom of the include stack. */ #define MAIN_FILE_P(MAP) ((MAP)->included_from < 0) #endif /* !GCC_LINE_MAP_H */ |