mirror of
https://gcc.gnu.org/git/gcc.git
synced 2025-01-01 16:34:06 +08:00
77ab4e3be2
As the following testcase shows, we don't parse properly C++11 attribute-declaration: https://eel.is/c++draft/dcl.dcl#nt:attribute-declaration cp_parser_toplevel_declaration just handles empty-declaration parsing (with diagnostics for C++98) and otherwise calls cp_parser_declaration which on it calls cp_parser_simple_declaration and rejects it with "does not declare anything" permerror. The following patch moves the handling of empty-declaration from cp_parser_toplevel_declaration to cp_parser_declaration and handles attribute-declaration in cp_parser_declaration by parsing the attributes (standard ones only, we've never supported __attribute__((...)); at namespace scope, so I'm not sure we need to introduce that), which for C++98 emits the needed diagnostics, and then warning if there are any attributes that we throw away on the floor. I'll need this later for OpenMP directives at namespace scope, e.g. [[omp::directive (requires, atomic_default_mem_order(seq_cst))]]; should be valid at namespace scope (and many other directives). 2021-07-30 Jakub Jelinek <jakub@redhat.com> PR c++/101582 * parser.c (cp_parser_skip_std_attribute_spec_seq): Add a forward declaration. (cp_parser_declaration): Parse empty-declaration and attribute-declaration. (cp_parser_toplevel_declaration): Don't parse empty-declaration here. * g++.dg/cpp0x/gen-attrs-45.C: Expect a warning about ignored attributes instead of error. * g++.dg/cpp0x/gen-attrs-75.C: New test. * g++.dg/modules/pr101582-1.C: New test. |
||
|---|---|---|
| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| ChangeLog.tree-ssa | ||
| compile | ||
| config-ml.in | ||
| config.guess | ||
| config.rpath | ||
| config.sub | ||
| configure | ||
| configure.ac | ||
| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| missing | ||
| mkdep | ||
| mkinstalldirs | ||
| move-if-change | ||
| multilib.am | ||
| README | ||
| symlink-tree | ||
| test-driver | ||
| ylwrap | ||
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.