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| author | Tom Honermann <tom@honermann.net> | 2019-01-14 19:55:51 +0000 |
|---|---|---|
| committer | Jason Merrill <jason@gcc.gnu.org> | 2019-01-14 14:55:51 -0500 |
| commit | 2d91f79dc990f81dcea89a5087cad566238b2456 (patch) | |
| tree | ae9137b811a3a0bdada65dbb8a6ed5dba9d24b0e /gcc/c-family/c-cppbuiltin.c | |
| parent | 23db6ced33c245c38c147c31011bbafa392e4328 (diff) | |
| download | gcc-2d91f79dc990f81dcea89a5087cad566238b2456.zip gcc-2d91f79dc990f81dcea89a5087cad566238b2456.tar.gz gcc-2d91f79dc990f81dcea89a5087cad566238b2456.tar.bz2 | |
Implement P0482R5, char8_t: A type for UTF-8 characters and strings
gcc/cp/
* cvt.c (type_promotes_to): Handle char8_t promotion.
* decl.c (grokdeclarator): Handle invalid type specifier
combinations involving char8_t.
* lex.c (init_reswords): Add char8_t as a reserved word.
* mangle.c (write_builtin_type): Add name mangling for char8_t (Du).
* parser.c (cp_keyword_starts_decl_specifier_p)
(cp_parser_simple_type_specifier): Recognize char8_t as a simple
type specifier.
(cp_parser_string_literal): Use char8_array_type_node for the type
of CPP_UTF8STRING.
(cp_parser_set_decl_spec_type): Tolerate char8_t typedefs in system
headers.
* rtti.c (emit_support_tinfos): type_info support for char8_t.
* tree.c (char_type_p): Recognize char8_t as a character type.
* typeck.c (string_conv_p): Handle conversions of u8 string
literals of char8_t type.
(check_literal_operator_args): Handle UDLs with u8 string literals
of char8_t type.
* typeck2.c (ordinary_char_type_p): New.
(digest_init_r): Disallow initializing a char array with a u8 string
literal.
gcc/c-family/
* c-common.c (c_common_reswords): Add char8_t.
(fix_string_type): Use char8_t for the type of u8 string literals.
(c_common_get_alias_set): char8_t doesn't alias.
(c_common_nodes_and_builtins): Define char8_t as a builtin type in
C++.
(c_stddef_cpp_builtins): Add __CHAR8_TYPE__.
(keyword_begins_type_specifier): Add RID_CHAR8.
* c-common.h (rid): Add RID_CHAR8.
(c_tree_index): Add CTI_CHAR8_TYPE and CTI_CHAR8_ARRAY_TYPE.
Define D_CXX_CHAR8_T and D_CXX_CHAR8_T_FLAGS.
Define char8_type_node and char8_array_type_node.
* c-cppbuiltin.c (cpp_atomic_builtins): Predefine
__GCC_ATOMIC_CHAR8_T_LOCK_FREE.
(c_cpp_builtins): Predefine __cpp_char8_t.
* c-lex.c (lex_string): Use char8_array_type_node as the type of
CPP_UTF8STRING.
(lex_charconst): Use char8_type_node as the type of CPP_UTF8CHAR.
* c-opts.c: If not otherwise specified, enable -fchar8_t when
targeting C++2a.
* c.opt: Add the -fchar8_t command line option.
libiberty/
* cp-demangle.c (cplus_demangle_builtin_types)
(cplus_demangle_type): Add name demangling for char8_t (Du).
* cp-demangle.h: Increase D_BUILTIN_TYPE_COUNT to accommodate the
new char8_t type.
From-SVN: r267923
Diffstat (limited to 'gcc/c-family/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-family/c-cppbuiltin.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c index 25b5c1a..c9b63ca 100644 --- a/gcc/c-family/c-cppbuiltin.c +++ b/gcc/c-family/c-cppbuiltin.c @@ -702,6 +702,9 @@ cpp_atomic_builtins (cpp_reader *pfile) (have_swap[SWAP_INDEX (boolean_type_node)]? 2 : 1)); builtin_define_with_int_value ("__GCC_ATOMIC_CHAR_LOCK_FREE", (have_swap[SWAP_INDEX (signed_char_type_node)]? 2 : 1)); + if (flag_char8_t) + builtin_define_with_int_value ("__GCC_ATOMIC_CHAR8_T_LOCK_FREE", + (have_swap[SWAP_INDEX (char8_type_node)]? 2 : 1)); builtin_define_with_int_value ("__GCC_ATOMIC_CHAR16_T_LOCK_FREE", (have_swap[SWAP_INDEX (char16_type_node)]? 2 : 1)); builtin_define_with_int_value ("__GCC_ATOMIC_CHAR32_T_LOCK_FREE", @@ -1000,6 +1003,8 @@ c_cpp_builtins (cpp_reader *pfile) cpp_define (pfile, "__cpp_template_template_args=201611"); if (flag_threadsafe_statics) cpp_define (pfile, "__cpp_threadsafe_static_init=200806"); + if (flag_char8_t) + cpp_define (pfile, "__cpp_char8_t=201811"); } /* Note that we define this for C as well, so that we know if __attribute__((cleanup)) will interface with EH. */ |