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| author | Tom Honermann <tom@honermann.net> | 2022-08-02 14:36:01 -0400 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2022-08-08 19:50:38 +0000 |
| commit | 703837b2cc8ac03c53ac7cc0fb1327055acaebd2 (patch) | |
| tree | 53dd67266a73a6e737de43ad4d4b88c400adfb3f /gcc/ginclude | |
| parent | 4b0253b019943abf2cc5f4db0b7ed67caedffe4a (diff) | |
| download | gcc-703837b2cc8ac03c53ac7cc0fb1327055acaebd2.zip gcc-703837b2cc8ac03c53ac7cc0fb1327055acaebd2.tar.gz gcc-703837b2cc8ac03c53ac7cc0fb1327055acaebd2.tar.bz2 | |
C: Implement C2X N2653 char8_t and UTF-8 string literal changes
This patch implements the core language and compiler dependent library
changes adopted for C2X via WG14 N2653. The changes include:
- Change of type for UTF-8 string literals from array of const char to
array of const char8_t (unsigned char).
- A new atomic_char8_t typedef.
- A new ATOMIC_CHAR8_T_LOCK_FREE macro defined in terms of the existing
__GCC_ATOMIC_CHAR8_T_LOCK_FREE predefined macro.
gcc/ChangeLog:
* ginclude/stdatomic.h (atomic_char8_t,
ATOMIC_CHAR8_T_LOCK_FREE): New typedef and macro.
gcc/c/ChangeLog:
* c-parser.cc (c_parser_string_literal): Use char8_t as the type
of CPP_UTF8STRING when char8_t support is enabled.
* c-typeck.cc (digest_init): Allow initialization of an array
of character type by a string literal with type array of
char8_t.
gcc/c-family/ChangeLog:
* c-lex.cc (lex_string, lex_charconst): Use char8_t as the type
of CPP_UTF8CHAR and CPP_UTF8STRING when char8_t support is
enabled.
* c-opts.cc (c_common_post_options): Set flag_char8_t if
targeting C2x.
gcc/testsuite/ChangeLog:
* gcc.dg/atomic/c2x-stdatomic-lockfree-char8_t.c: New test.
* gcc.dg/atomic/gnu2x-stdatomic-lockfree-char8_t.c: New test.
* gcc.dg/c11-utf8str-type.c: New test.
* gcc.dg/c17-utf8str-type.c: New test.
* gcc.dg/c2x-utf8str-type.c: New test.
* gcc.dg/c2x-utf8str.c: New test.
* gcc.dg/gnu2x-utf8str-type.c: New test.
* gcc.dg/gnu2x-utf8str.c: New test.
Diffstat (limited to 'gcc/ginclude')
| -rw-r--r-- | gcc/ginclude/stdatomic.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ginclude/stdatomic.h b/gcc/ginclude/stdatomic.h index bfcfdf6..9f2475b 100644 --- a/gcc/ginclude/stdatomic.h +++ b/gcc/ginclude/stdatomic.h @@ -49,6 +49,9 @@ typedef _Atomic long atomic_long; typedef _Atomic unsigned long atomic_ulong; typedef _Atomic long long atomic_llong; typedef _Atomic unsigned long long atomic_ullong; +#ifdef __CHAR8_TYPE__ +typedef _Atomic __CHAR8_TYPE__ atomic_char8_t; +#endif typedef _Atomic __CHAR16_TYPE__ atomic_char16_t; typedef _Atomic __CHAR32_TYPE__ atomic_char32_t; typedef _Atomic __WCHAR_TYPE__ atomic_wchar_t; @@ -97,6 +100,9 @@ extern void atomic_signal_fence (memory_order); #define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE #define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE +#ifdef __GCC_ATOMIC_CHAR8_T_LOCK_FREE +#define ATOMIC_CHAR8_T_LOCK_FREE __GCC_ATOMIC_CHAR8_T_LOCK_FREE +#endif #define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE #define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE #define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE |