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| author | Jakub Jelinek <jakub@redhat.com> | 2021-12-30 22:23:58 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2021-12-30 22:23:58 +0100 |
| commit | 5545d1edcbdb1701443f94dde7ec97c5ce3e1a6c (patch) | |
| tree | 91e1d28262ea01451faebec09a45e3545010aa87 /libgfortran/runtime/string.c | |
| parent | be674bdd11d5fa6b20d469e6d6f43c26da9e744f (diff) | |
| download | gcc-5545d1edcbdb1701443f94dde7ec97c5ce3e1a6c.zip gcc-5545d1edcbdb1701443f94dde7ec97c5ce3e1a6c.tar.gz gcc-5545d1edcbdb1701443f94dde7ec97c5ce3e1a6c.tar.bz2 | |
libcpp: Fix up ##__VA_OPT__ handling [PR89971]
In the following testcase we incorrectly error about pasting / token
with padding token (which is a result of __VA_OPT__); instead we should
like e.g. for ##arg where arg is empty macro argument clear PASTE_LEFT
flag of the previous token if __VA_OPT__ doesn't add any real tokens
(which can happen either because the macro doesn't have any tokens
passed to ... (i.e. __VA_ARGS__ expands to empty) or when __VA_OPT__
doesn't have any tokens in between ()s).
2021-12-30 Jakub Jelinek <jakub@redhat.com>
PR preprocessor/89971
libcpp/
* macro.c (replace_args): For ##__VA_OPT__, if __VA_OPT__ expands
to no tokens at all, drop PASTE_LEFT flag from the previous token.
gcc/testsuite/
* c-c++-common/cpp/va-opt-9.c: New test.
Diffstat (limited to 'libgfortran/runtime/string.c')
0 files changed, 0 insertions, 0 deletions