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Implement N4197 - Adding u8 character literals

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libcpp:

2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement N4197 - Adding u8 character literals
	* include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens;
	(struct cpp_options): Add utf8_char_literals.
	* init.c (struct lang_flags): Add utf8_char_literals;
	(struct lang_flags lang_defaults): Add column for utf8_char_literals.
	* macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; 
	* expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()):
	Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens;
	(cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token;
	(eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token.
	* lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens.
	* charset.c (converter_for_type(), cpp_interpret_charconst()):
	Treat CPP_UTF8CHAR token.


gcc/c-family:

2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement N4197 - Adding u8 character literals
	* c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR
	like CPP_CHAR.
	* c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR
	and CPP_UTF8CHAR_USERDEF tokens.
	* c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF
	and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token.


gcc/cp:

2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement N4197 - Adding u8 character literals
	* parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR
	and CPP_UTF8CHAR_USERDEF tokens;
	(cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token.


gcc/testsuite:

2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement N4197 - Adding u8 character literals
	* g++.dg/cpp1z/utf8.C: New.
	* g++.dg/cpp1z/utf8-neg.C: New.
	* g++.dg/cpp1z/udlit-utf8char.C: New.

From-SVN: r225185
This commit is contained in:
Edward Smith-Rowland 2015-06-30 12:58:48 +00:00 committed by Edward Smith-Rowland
parent 5b00d92116
commit fe95b0366a
17 changed files with 127 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/c-family/ChangeLog
View File

@ -1,3 +1,13 @@
2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement N4197 - Adding u8 character literals
* c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR
like CPP_CHAR.
* c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR
and CPP_UTF8CHAR_USERDEF tokens.
* c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF
and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token.
2015-06-29 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR fortran/66605

1
gcc/c-family/c-ada-spec.c
View File

@ -249,6 +249,7 @@ print_ada_macros (pretty_printer *pp, cpp_hashnode **macros, int max_ada_macros)
case CPP_WCHAR:
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_UTF8CHAR:
case CPP_NAME:
case CPP_STRING:
case CPP_NUMBER:

9
gcc/c-family/c-common.c
View File

@ -10256,7 +10256,8 @@ c_parse_error (const char *gmsgid, enum cpp_ttype token_type,
else if (token_type == CPP_CHAR
|| token_type == CPP_WCHAR
|| token_type == CPP_CHAR16
|| token_type == CPP_CHAR32)
|| token_type == CPP_CHAR32
|| token_type == CPP_UTF8CHAR)
{
unsigned int val = TREE_INT_CST_LOW (value);
const char *prefix;
@ -10275,6 +10276,9 @@ c_parse_error (const char *gmsgid, enum cpp_ttype token_type,
case CPP_CHAR32:
prefix = "U";
break;
case CPP_UTF8CHAR:
prefix = "u8";
break;
}
if (val <= UCHAR_MAX && ISGRAPH (val))
@ -10289,7 +10293,8 @@ c_parse_error (const char *gmsgid, enum cpp_ttype token_type,
else if (token_type == CPP_CHAR_USERDEF
|| token_type == CPP_WCHAR_USERDEF
|| token_type == CPP_CHAR16_USERDEF
|| token_type == CPP_CHAR32_USERDEF)
|| token_type == CPP_CHAR32_USERDEF
|| token_type == CPP_UTF8CHAR_USERDEF)
message = catenate_messages (gmsgid,
" before user-defined character literal");
else if (token_type == CPP_STRING_USERDEF

4
gcc/c-family/c-lex.c
View File

@ -536,6 +536,7 @@ c_lex_with_flags (tree *value, location_t *loc, unsigned char *cpp_flags,
case CPP_WCHAR_USERDEF:
case CPP_CHAR16_USERDEF:
case CPP_CHAR32_USERDEF:
case CPP_UTF8CHAR_USERDEF:
{
tree literal;
cpp_token temp_tok = *tok;
@ -553,6 +554,7 @@ c_lex_with_flags (tree *value, location_t *loc, unsigned char *cpp_flags,
case CPP_WCHAR:
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_UTF8CHAR:
*value = lex_charconst (tok);
break;
@ -1250,6 +1252,8 @@ lex_charconst (const cpp_token *token)
type = char32_type_node;
else if (token->type == CPP_CHAR16)
type = char16_type_node;
else if (token->type == CPP_UTF8CHAR)
type = char_type_node;
/* In C, a character constant has type 'int'.
In C++ 'char', but multi-char charconsts have type 'int'. */
else if (!c_dialect_cxx () || chars_seen > 1)

7
gcc/cp/ChangeLog
View File

@ -1,3 +1,10 @@
2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement N4197 - Adding u8 character literals
* parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR
and CPP_UTF8CHAR_USERDEF tokens;
(cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token.
2015-06-29 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/65977

3
gcc/cp/parser.c
View File

@ -4284,6 +4284,7 @@ cp_parser_primary_expression (cp_parser *parser,
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_WCHAR:
case CPP_UTF8CHAR:
case CPP_NUMBER:
case CPP_PREPARSED_EXPR:
if (TREE_CODE (token->u.value) == USERDEF_LITERAL)
@ -4345,6 +4346,7 @@ cp_parser_primary_expression (cp_parser *parser,
case CPP_CHAR16_USERDEF:
case CPP_CHAR32_USERDEF:
case CPP_WCHAR_USERDEF:
case CPP_UTF8CHAR_USERDEF:
return cp_parser_userdef_char_literal (parser);
case CPP_STRING:
@ -6887,6 +6889,7 @@ cp_parser_parenthesized_expression_list (cp_parser* parser,
case CPP_WCHAR:
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_UTF8CHAR:
/* If a parameter is literal zero alone, remember it
for -Wmemset-transposed-args warning. */
if (integer_zerop (tok->u.value)

7
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement N4197 - Adding u8 character literals
* g++.dg/cpp1z/utf8.C: New.
* g++.dg/cpp1z/utf8-neg.C: New.
* g++.dg/cpp1z/udlit-utf8char.C: New.
2015-06-30 Marek Polacek <polacek@redhat.com>
* gcc.dg/fold-ior-2.c (fn4): Swap operands.

8
gcc/testsuite/g++.dg/cpp1z/udlit-utf8char.C Normal file
View File

@ -0,0 +1,8 @@
// { dg-do compile }
// { dg-options "-std=c++1z" }
constexpr int
operator""_foo(char c)
{ return c * 100; }
auto cc = u8'8'_foo;

7
gcc/testsuite/g++.dg/cpp1z/utf8-neg.C Normal file
View File

@ -0,0 +1,7 @@
/* { dg-do compile } */
/* { dg-options "-std=c++1z" } */
const static char c0 = u8''; // { dg-error "empty character" }
const static char c1 = u8'ab'; // { dg-warning "multi-character character constant" }
const static char c2 = u8'\u0124'; // { dg-warning "multi-character character constant" }
const static char c3 = u8'\U00064321'; // { dg-warning "multi-character character constant" }

15
gcc/testsuite/g++.dg/cpp1z/utf8.C Normal file
View File

@ -0,0 +1,15 @@
// { dg-do compile }
// { dg-options "-std=c++1z" }
#include <cassert>
#include <experimental/type_traits>
auto c = 'c';
auto u8c = u8'c';
static_assert(std::experimental::is_same_v<decltype(u8c), decltype(c)>, "");
auto u8s = u8"c";
auto x = u8s[0];
static_assert(std::experimental::is_same_v<decltype(u8c), decltype(x)>, "");

16
libcpp/ChangeLog
View File

@ -1,3 +1,19 @@
2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net>
Implement N4197 - Adding u8 character literals
* include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens;
(struct cpp_options): Add utf8_char_literals.
* init.c (struct lang_flags): Add utf8_char_literals;
(struct lang_flags lang_defaults): Add column for utf8_char_literals.
* macro.c (stringify_arg()): Treat CPP_UTF8CHAR token;
* expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()):
Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens;
(cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token;
(eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token.
* lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens.
* charset.c (converter_for_type(), cpp_interpret_charconst()):
Treat CPP_UTF8CHAR token.
2015-06-30 Uros Bizjak <ubizjak@gmail.com>
* lex.c (search_line_sse42) [__GCC_ASM_FLAG_OUTPUTS__]: New main

8
libcpp/charset.c
View File

@ -1355,6 +1355,7 @@ converter_for_type (cpp_reader *pfile, enum cpp_ttype type)
{
default:
return pfile->narrow_cset_desc;
case CPP_UTF8CHAR:
case CPP_UTF8STRING:
return pfile->utf8_cset_desc;
case CPP_CHAR16:
@ -1611,11 +1612,12 @@ cpp_interpret_charconst (cpp_reader *pfile, const cpp_token *token,
unsigned int *pchars_seen, int *unsignedp)
{
cpp_string str = { 0, 0 };
bool wide = (token->type != CPP_CHAR);
bool wide = (token->type != CPP_CHAR && token->type != CPP_UTF8CHAR);
int u8 = 2 * int(token->type == CPP_UTF8CHAR);
cppchar_t result;
/* an empty constant will appear as L'', u'', U'' or '' */
if (token->val.str.len == (size_t) (2 + wide))
/* An empty constant will appear as L'', u'', U'', u8'', or '' */
if (token->val.str.len == (size_t) (2 + wide + u8))
{
cpp_error (pfile, CPP_DL_ERROR, "empty character constant");
return 0;

9
libcpp/expr.c
View File

@ -307,6 +307,8 @@ cpp_userdef_char_remove_type (enum cpp_ttype type)
return CPP_CHAR16;
else if (type == CPP_CHAR32_USERDEF)
return CPP_CHAR32;
else if (type == CPP_UTF8CHAR_USERDEF)
return CPP_UTF8CHAR;
else
return type;
}
@ -325,6 +327,8 @@ cpp_userdef_char_add_type (enum cpp_ttype type)
return CPP_CHAR16_USERDEF;
else if (type == CPP_CHAR32)
return CPP_CHAR32_USERDEF;
else if (type == CPP_UTF8CHAR)
return CPP_UTF8CHAR_USERDEF;
else
return type;
}
@ -350,7 +354,8 @@ cpp_userdef_char_p (enum cpp_ttype type)
if (type == CPP_CHAR_USERDEF
|| type == CPP_WCHAR_USERDEF
|| type == CPP_CHAR16_USERDEF
|| type == CPP_CHAR32_USERDEF)
|| type == CPP_CHAR32_USERDEF
|| type == CPP_UTF8CHAR_USERDEF)
return true;
else
return false;
@ -1029,6 +1034,7 @@ eval_token (cpp_reader *pfile, const cpp_token *token,
case CPP_CHAR:
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_UTF8CHAR:
{
cppchar_t cc = cpp_interpret_charconst (pfile, token,
&temp, &unsignedp);
@ -1214,6 +1220,7 @@ _cpp_parse_expr (cpp_reader *pfile, bool is_if)
case CPP_WCHAR:
case CPP_CHAR16:
case CPP_CHAR32:
case CPP_UTF8CHAR:
case CPP_NAME:
case CPP_HASH:
if (!want_value)

5
libcpp/include/cpplib.h
View File

@ -119,6 +119,7 @@ struct _cpp_file;
TK(WCHAR, LITERAL) /* L'char' */ \
TK(CHAR16, LITERAL) /* u'char' */ \
TK(CHAR32, LITERAL) /* U'char' */ \
TK(UTF8CHAR, LITERAL) /* u8'char' */ \
TK(OTHER, LITERAL) /* stray punctuation */ \
\
TK(STRING, LITERAL) /* "string" */ \
@ -133,6 +134,7 @@ struct _cpp_file;
TK(WCHAR_USERDEF, LITERAL) /* L'char'_suffix - C++-0x */ \
TK(CHAR16_USERDEF, LITERAL) /* u'char'_suffix - C++-0x */ \
TK(CHAR32_USERDEF, LITERAL) /* U'char'_suffix - C++-0x */ \
TK(UTF8CHAR_USERDEF, LITERAL) /* u8'char'_suffix - C++-0x */ \
TK(STRING_USERDEF, LITERAL) /* "string"_suffix - C++-0x */ \
TK(WSTRING_USERDEF, LITERAL) /* L"string"_suffix - C++-0x */ \
TK(STRING16_USERDEF, LITERAL) /* u"string"_suffix - C++-0x */ \
@ -339,6 +341,9 @@ struct cpp_options
/* Nonzero means process u/U prefix literals (UTF-16/32). */
unsigned char uliterals;
/* Nonzero means process u8 prefixed character literals (UTF-8). */
unsigned char utf8_char_literals;
/* Nonzero means process r/R raw strings. If this is set, uliterals
must be set as well. */
unsigned char rliterals;

36
libcpp/init.c
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@ -90,26 +90,27 @@ struct lang_flags
char binary_constants;
char digit_separators;
char trigraphs;
char utf8_char_literals;
};
static const struct lang_flags lang_defaults[] =
{ /* c99 c++ xnum xid c11 std digr ulit rlit udlit bincst digsep trig */
/* GNUC89 */ { 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
/* GNUC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0 },
/* GNUC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0 },
/* STDC89 */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1 },
/* STDC94 */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1 },
/* STDC99 */ { 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1 },
/* STDC11 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 },
/* GNUCXX */ { 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 },
/* CXX98 */ { 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1 },
/* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0 },
/* CXX11 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1 },
/* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 },
/* CXX14 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
/* GNUCXX1Z */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 },
/* CXX1Z */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
/* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
{ /* c99 c++ xnum xid c11 std digr ulit rlit udlit bincst digsep trig u8chlit */
/* GNUC89 */ { 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 },
/* GNUC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0 },
/* GNUC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0 },
/* STDC89 */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0 },
/* STDC94 */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0 },
/* STDC99 */ { 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0 },
/* STDC11 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0 },
/* GNUCXX */ { 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 },
/* CXX98 */ { 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0 },
/* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0 },
/* CXX11 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0 },
/* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0 },
/* CXX14 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0 },
/* GNUCXX1Z */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1 },
/* CXX1Z */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1 },
/* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
/* Sets internal flags correctly for a given language. */
@ -133,6 +134,7 @@ cpp_set_lang (cpp_reader *pfile, enum c_lang lang)
CPP_OPTION (pfile, binary_constants) = l->binary_constants;
CPP_OPTION (pfile, digit_separators) = l->digit_separators;
CPP_OPTION (pfile, trigraphs) = l->trigraphs;
CPP_OPTION (pfile, utf8_char_literals) = l->utf8_char_literals;
}
/* Initialize library global state. */

6
libcpp/lex.c
View File

@ -1858,7 +1858,8 @@ lex_string (cpp_reader *pfile, cpp_token *token, const uchar *base)
else if (terminator == '\'')
type = (*base == 'L' ? CPP_WCHAR :
*base == 'U' ? CPP_CHAR32 :
*base == 'u' ? CPP_CHAR16 : CPP_CHAR);
*base == 'u' ? (base[1] == '8' ? CPP_UTF8CHAR : CPP_CHAR16)
: CPP_CHAR);
else
terminator = '>', type = CPP_HEADER_NAME;
@ -2403,7 +2404,8 @@ _cpp_lex_direct (cpp_reader *pfile)
&& CPP_OPTION (pfile, rliterals))
|| (*buffer->cur == '8'
&& c == 'u'
&& (buffer->cur[1] == '"'
&& ((buffer->cur[1] == '"' || (buffer->cur[1] == '\''
&& CPP_OPTION (pfile, utf8_char_literals)))
|| (buffer->cur[1] == 'R' && buffer->cur[2] == '"'
&& CPP_OPTION (pfile, rliterals)))))
{

2
libcpp/macro.c
View File

@ -531,7 +531,7 @@ stringify_arg (cpp_reader *pfile, macro_arg *arg)
|| token->type == CPP_WSTRING || token->type == CPP_WCHAR
|| token->type == CPP_STRING32 || token->type == CPP_CHAR32
|| token->type == CPP_STRING16 || token->type == CPP_CHAR16
|| token->type == CPP_UTF8STRING
|| token->type == CPP_UTF8STRING || token->type == CPP_UTF8CHAR
|| cpp_userdef_string_p (token->type)
|| cpp_userdef_char_p (token->type));