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| author | Jakub Jelinek <jakub@redhat.com> | 2016-10-08 12:54:27 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2016-10-08 12:54:27 +0200 |
| commit | ee19ef45ba9dc5a783303e353d538e83dabe3377 (patch) | |
| tree | 2bb03fc407441f31957cbe3fcb1f2eeb60783246 /libcpp | |
| parent | 81b02905b035e7afee46c38186c95434b6d86813 (diff) | |
| download | gcc-ee19ef45ba9dc5a783303e353d538e83dabe3377.zip gcc-ee19ef45ba9dc5a783303e353d538e83dabe3377.tar.gz gcc-ee19ef45ba9dc5a783303e353d538e83dabe3377.tar.bz2 | |
invoke.texi: Document accepting Else, fallthrough.
* doc/invoke.texi: Document accepting Else, fallthrough.
* lex.c (fallthrough_comment_p): Accept Else, fallthrough.
* c-c++-common/Wimplicit-fallthrough-23.c (foo): Add further tests.
From-SVN: r240886
Diffstat (limited to 'libcpp')
| -rw-r--r-- | libcpp/ChangeLog | 2 | ||||
| -rw-r--r-- | libcpp/lex.c | 19 |
2 files changed, 15 insertions, 6 deletions
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog index 6e48566..1f4db49 100644 --- a/libcpp/ChangeLog +++ b/libcpp/ChangeLog @@ -1,5 +1,7 @@ 2016-10-08 Jakub Jelinek <jakub@redhat.com> + * lex.c (fallthrough_comment_p): Accept Else, fallthrough. + * lex.c (fallthrough_comment_p): Extend to handle more common FALLTHRU comment styles. diff --git a/libcpp/lex.c b/libcpp/lex.c index 2e0512d..4d8e5e7 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -2074,9 +2074,9 @@ fallthrough_comment_p (cpp_reader *pfile, const unsigned char *comment_start) from++; } /* Whole comment contents (regex): - [ \t.!]*(ELSE |INTENTIONAL(LY)? )?FALL(S | |-)?THR(OUGH|U)[ \t.!]*(-[^\n\r]*)? - [ \t.!]*(Else |Intentional(ly)? )?Fall((s | |-)[Tt]|t)hr(ough|u)[ \t.!]*(-[^\n\r]*)? - [ \t.!]*([Ee]lse |[Ii]ntentional(ly)? )?fall(s | |-)?thr(ough|u)[ \t.!]*(-[^\n\r]*)? + [ \t.!]*(ELSE,? |INTENTIONAL(LY)? )?FALL(S | |-)?THR(OUGH|U)[ \t.!]*(-[^\n\r]*)? + [ \t.!]*(Else,? |Intentional(ly)? )?Fall((s | |-)[Tt]|t)hr(ough|u)[ \t.!]*(-[^\n\r]*)? + [ \t.!]*([Ee]lse,? |[Ii]ntentional(ly)? )?fall(s | |-)?thr(ough|u)[ \t.!]*(-[^\n\r]*)? */ else { @@ -2089,11 +2089,18 @@ fallthrough_comment_p (cpp_reader *pfile, const unsigned char *comment_start) if ((size_t) (pfile->buffer->cur - from) < sizeof "else fallthru" - 1) return false; - if (f == 'E' && memcmp (from + 1, "LSE F", sizeof "LSE F" - 1) == 0) + if (f == 'E' && memcmp (from + 1, "LSE", sizeof "LSE" - 1) == 0) all_upper = true; - else if (memcmp (from + 1, "lse ", sizeof "lse " - 1)) + else if (memcmp (from + 1, "lse", sizeof "lse" - 1)) + return false; + from += sizeof "else" - 1; + if (*from == ',') + from++; + if (*from != ' ') + return false; + from++; + if (all_upper && *from == 'f') return false; - from += sizeof "else " - 1; if (f == 'e' && *from == 'F') return false; f = *from; |