This patch series provides an implementation and tests for the WG14 N2653
paper as adopted for C2X.
Additionally, a fix is included for the C++ preprocessor to treat UTF-8
character literals in preprocessor directives as an unsigned type in char8_t
enabled modes (in C++17 and earlier with -fchar8_t or in C++20 or later
without -fno-char8_t).
Tom Honermann (3):
C: Implement C2X N2653 char8_t and UTF-8 string literal changes
testsuite: Add tests for C2X N2653 char8_t and UTF-8 string literal
changes
c++/106426: Treat u8 character literals as unsigned in char8_t modes.
gcc/c-family/c-lex.cc | 13 ++++--
gcc/c-family/c-opts.cc | 5 ++-
gcc/c/c-parser.cc | 16 ++++++-
gcc/c/c-typeck.cc | 2 +-
gcc/ginclude/stdatomic.h | 8 ++++
.../g++.dg/ext/char8_t-char-literal-1.C | 6 ++-
.../g++.dg/ext/char8_t-char-literal-2.C | 4 ++
.../atomic/c2x-stdatomic-lockfree-char8_t.c | 42 +++++++++++++++++++
.../atomic/gnu2x-stdatomic-lockfree-char8_t.c | 5 +++
gcc/testsuite/gcc.dg/c2x-predefined-macros.c | 11 +++++
gcc/testsuite/gcc.dg/c2x-utf8str-type.c | 6 +++
gcc/testsuite/gcc.dg/c2x-utf8str.c | 34 +++++++++++++++
.../gcc.dg/gnu2x-predefined-macros.c | 5 +++
gcc/testsuite/gcc.dg/gnu2x-utf8str-type.c | 5 +++
gcc/testsuite/gcc.dg/gnu2x-utf8str.c | 34 +++++++++++++++
libcpp/charset.cc | 4 +-
libcpp/include/cpplib.h | 4 +-
libcpp/init.cc | 1 +
18 files changed, 191 insertions(+), 14 deletions(-)
create mode 100644 gcc/testsuite/gcc.dg/atomic/c2x-stdatomic-lockfree-char8_t.c
create mode 100644
gcc/testsuite/gcc.dg/atomic/gnu2x-stdatomic-lockfree-char8_t.c
create mode 100644 gcc/testsuite/gcc.dg/c2x-predefined-macros.c
create mode 100644 gcc/testsuite/gcc.dg/c2x-utf8str-type.c
create mode 100644 gcc/testsuite/gcc.dg/c2x-utf8str.c
create mode 100644 gcc/testsuite/gcc.dg/gnu2x-predefined-macros.c
create mode 100644 gcc/testsuite/gcc.dg/gnu2x-utf8str-type.c
create mode 100644 gcc/testsuite/gcc.dg/gnu2x-utf8str.c
--
2.32.0
