commit	cb1beee76f520857b985db2af6117ad97aa45c4e	[log] [tgz]
author	Richard Smith <richard-llvm@metafoo.co.uk>	Sat May 04 06:46:18 2019 +0000
committer	Richard Smith <richard-llvm@metafoo.co.uk>	Sat May 04 06:46:18 2019 +0000
tree	3dd01f89ff7cd37c28716d6510143561ece28839
parent	5ddd564e190f10b0b001c203fbfbfd521a22c0c4 [diff]

[c++20] Implement tweaked __VA_OPT__ rules from P1042R1:

 * __VA_OPT__ is expanded if the *expanded* __VA_ARGS__ is non-empty,
   not if the original argument contained no tokens.
 * Placemarkers at the start and end of __VA_OPT__ are retained just
   long enough to paste them with adjacent ## operators. We never paste
   "across" a discarded placemarker.

llvm-svn: 359964

clang/include/clang/Lex/MacroArgs.h[diff]
clang/include/clang/Lex/VariadicMacroSupport.h[diff]
clang/lib/Lex/MacroArgs.cpp[diff]
clang/lib/Lex/TokenLexer.cpp[diff]
clang/test/Preprocessor/macro_vaopt_expand.cpp[diff]
clang/test/Preprocessor/macro_vaopt_p1042r1.cpp[Added - diff]
clang/www/cxx_status.html[diff]

7 files changed

tree: 3dd01f89ff7cd37c28716d6510143561ece28839

clang/
clang-tools-extra/
compiler-rt/
debuginfo-tests/
libclc/
libcxx/
libcxxabi/
libunwind/
lld/
lldb/
llgo/
llvm/
openmp/
parallel-libs/
polly/
pstl/
.arcconfig
.clang-format
.clang-tidy
.gitignore
README.md

README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.