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| author | Jakub Jelinek <jakub@redhat.com> | 2021-05-20 09:09:07 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2021-05-20 09:09:07 +0200 |
| commit | d15a2d261b24adcbfe5e663b15dde3df5d2b3486 (patch) | |
| tree | 0d66af0a7621c749e2a64d876f63c17e9de21133 /libcpp | |
| parent | 75ab8b4829dec8c70470e8225c9add964f71ed74 (diff) | |
| download | gcc-d15a2d261b24adcbfe5e663b15dde3df5d2b3486.tar.gz | |
libcpp: Fix up -fdirectives-only handling of // comments on last line not terminated with newline [PR100646]
As can be seen on the testcases, before the -fdirectives-only preprocessing
rewrite the preprocessor would assume // comments are terminated by the
end of file even when newline wasn't there, but now we error out.
The following patch restores the previous behavior.
2021-05-20 Jakub Jelinek <jakub@redhat.com>
PR preprocessor/100646
* lex.c (cpp_directive_only_process): Treat end of file as termination
for !is_block comments.
* gcc.dg/cpp/pr100646-1.c: New test.
* gcc.dg/cpp/pr100646-2.c: New test.
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/lex.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libcpp/lex.c b/libcpp/lex.c index 6fd722ab263..3618fa5d737 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -4480,8 +4480,9 @@ cpp_directive_only_process (cpp_reader *pfile, break; } } - cpp_error_with_line (pfile, CPP_DL_ERROR, sloc, 0, - "unterminated comment"); + if (pos < limit || is_block) + cpp_error_with_line (pfile, CPP_DL_ERROR, sloc, 0, + "unterminated comment"); done_comment: lwm = pos; break; |