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| author | Jason Merrill <jason@redhat.com> | 2023-06-23 13:54:07 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2023-08-14 13:33:58 -0400 |
| commit | cc56607f21f77d4e9c8146cd1b0400fddea589c6 (patch) | |
| tree | d92fbe8dd8c126f0468ed312e19027957f8e8a10 | |
| parent | 2d2b05f0691799f03062bf5c436462f14cad3e7c (diff) | |
| download | gcc-cc56607f21f77d4e9c8146cd1b0400fddea589c6.zip gcc-cc56607f21f77d4e9c8146cd1b0400fddea589c6.tar.gz gcc-cc56607f21f77d4e9c8146cd1b0400fddea589c6.tar.bz2 | |
c++: -fconcepts and __cpp_concepts
Since -fconcepts no longer implies -fconcepts-ts, we shouldn't advertise TS
support with __cpp_concepts=201507L. Also fix one case where -std=c++14
-fconcepts wasn't working (as found by range-v3 calendar). Fixing other
cases is not a priority, probably better to reject that flag combination if
there are further issues.
gcc/c-family/ChangeLog:
* c-cppbuiltin.cc (c_cpp_builtins): Adjust __cpp_concepts.
gcc/cp/ChangeLog:
* parser.cc (cp_parser_simple_type_specifier): Handle -std=c++14
-fconcepts.
| -rw-r--r-- | gcc/c-family/c-cppbuiltin.cc | 2 | ||||
| -rw-r--r-- | gcc/cp/parser.cc | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/gcc/c-family/c-cppbuiltin.cc b/gcc/c-family/c-cppbuiltin.cc index 6bd4c12..f2b12fd 100644 --- a/gcc/c-family/c-cppbuiltin.cc +++ b/gcc/c-family/c-cppbuiltin.cc @@ -1089,7 +1089,7 @@ c_cpp_builtins (cpp_reader *pfile) } if (flag_concepts) { - if (cxx_dialect >= cxx20) + if (cxx_dialect >= cxx20 || !flag_concepts_ts) cpp_define (pfile, "__cpp_concepts=202002L"); else cpp_define (pfile, "__cpp_concepts=201507L"); diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc index 2d27376..7f64670 100644 --- a/gcc/cp/parser.cc +++ b/gcc/cp/parser.cc @@ -20017,12 +20017,13 @@ cp_parser_simple_type_specifier (cp_parser* parser, /* Otherwise, look for a type-name. */ if (!type) { - if (cxx_dialect >= cxx17) + if (cxx_dialect >= cxx17 || flag_concepts) cp_parser_parse_tentatively (parser); type = cp_parser_type_name (parser, (qualified_p && typename_p)); - if (cxx_dialect >= cxx17 && !cp_parser_parse_definitely (parser)) + if ((cxx_dialect >= cxx17 || flag_concepts) + && !cp_parser_parse_definitely (parser)) type = NULL_TREE; } |