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| author | Nathan Sidwell <nathan@acm.org> | 2019-09-05 11:23:48 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2019-09-05 11:23:48 +0000 |
| commit | 056f95ec951178a110b57e58a2ee434907de2e38 (patch) | |
| tree | a8e6ad6be4a477e263294cb8c34feef8df71253e /libcpp/line-map.c | |
| parent | e7414688f16c4c9db2dacbc31da683887b4ba1bd (diff) | |
| download | gcc-056f95ec951178a110b57e58a2ee434907de2e38.tar.gz | |
[preprocessor/91639] #includes at EOF
https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00280.html
libcpp/
PR preprocessor/91639
* directives.c (do_include_common): Tell lexer we're a #include.
* files.c (_cpp_stack_file): Lexer will have always incremented.
* internal.h (struct cpp_context): Extend in_directive's
semantics.
* lex.c (_cpp_lex_direct): Increment line for final \n when lexing
for an ISO #include.
* line-map.c (linemap_line_start): Remember if we overflowed.
gcc/testsuite/
PR preprocessor/91639
* c-c++-common/cpp/pr91639.c: New.
* c-c++-common/cpp/pr91639-one.h: New.
* c-c++-common/cpp/pr91639-two.h: New.
From-SVN: r275402
Diffstat (limited to 'libcpp/line-map.c')
| -rw-r--r-- | libcpp/line-map.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libcpp/line-map.c b/libcpp/line-map.c index 572d7f416f5..d6924eb3e78 100644 --- a/libcpp/line-map.c +++ b/libcpp/line-map.c @@ -764,7 +764,11 @@ linemap_line_start (line_maps *set, linenum_type to_line, /* Locations of ordinary tokens are always lower than locations of macro tokens. */ if (r >= LINE_MAP_MAX_LOCATION) - return 0; + { + /* Remember we overflowed. */ + set->highest_line = set->highest_location = LINE_MAP_MAX_LOCATION - 1; + return 0; + } set->highest_line = r; if (r > set->highest_location) |