fb771b9dad
This implements __VA_OPT__, a new preprocessor feature added in C++2A. The paper can be found here: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0306r4.html gcc/ChangeLog * doc/cpp.texi (Variadic Macros): Document __VA_OPT__. gcc/testsuite/ChangeLog * c-c++-common/cpp/va-opt-pedantic.c: New file. * c-c++-common/cpp/va-opt.c: New file. * c-c++-common/cpp/va-opt-error.c: New file. libcpp/ChangeLog * pch.c (cpp_read_state): Set n__VA_OPT__. * macro.c (vaopt_state): New class. (_cpp_arguments_ok): Check va_opt flag. (replace_args, create_iso_definition): Use vaopt_state. * lex.c (lex_identifier_intern): Possibly issue errors for __VA_OPT__. (lex_identifier): Likewise. (maybe_va_opt_error): New function. * internal.h (struct lexer_state) <va_args_ok>: Update comment. (struct spec_nodes) <n__VA_OPT__>: New field. * init.c (struct lang_flags) <va_opt>: New field. (lang_defaults): Add entries for C++2A. Update all entries for va_opt. (cpp_set_lang): Initialize va_opt. * include/cpplib.h (struct cpp_options) <va_opt>: New field. * identifiers.c (_cpp_init_hashtable): Initialize n__VA_OPT__. From-SVN: r254707 |
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| .. | ||
| include | ||
| po | ||
| ChangeLog | ||
| ChangeLog.jit | ||
| Makefile.in | ||
| aclocal.m4 | ||
| charset.c | ||
| config.in | ||
| configure | ||
| configure.ac | ||
| directives-only.c | ||
| directives.c | ||
| errors.c | ||
| expr.c | ||
| files.c | ||
| identifiers.c | ||
| init.c | ||
| internal.h | ||
| lex.c | ||
| line-map.c | ||
| location-example.txt | ||
| macro.c | ||
| makeucnid.c | ||
| mkdeps.c | ||
| pch.c | ||
| symtab.c | ||
| system.h | ||
| traditional.c | ||
| ucnid.h | ||
| ucnid.tab | ||