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Implement SD-6: SG10 Feature Test Recommendations

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2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* internal.h (lexer_state, spec_nodes): Add in__has_include__.
	* directives.c: Support __has_include__ builtin.
	* expr.c (parse_has_include): New function to parse __has_include__
	builtin; (eval_token()): Use it.
	* files.c (_cpp_has_header()): New funtion to look for header;
	(open_file_failed()): Not an error to not find a header file for
	__has_include__.
	* identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__.
	* pch.c (cpp_read_state): Lookup __has_include__.
	* traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through
	__has_include__ statements.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* c-cppbuiltin.c (c_cpp_builtins()): Define language feature
	macros and the __has_header macro.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* include/bits/basic_string.h: Add __cpp_lib feature test macro.
	* include/bits/stl_algobase.h: Ditto.
	* include/bits/stl_function.h: Ditto.
	* include/bits/unique_ptr.h: Ditto.
	* include/std/chrono: Ditto.
	* include/std/complex: Ditto.
	* include/std/iomanip: Ditto.
	* include/std/shared_mutex: Ditto.
	* include/std/tuple: Ditto.
	* include/std/type_traits: Ditto.
	* include/std/utility: Ditto.
	* testsuite/experimental/feat-cxx14.cc: New.
	* testsuite/experimental/feat-lib-fund.cc: New.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/duration/literals/range.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Adjust.
	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Adjust.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Adjust.

2014-10-01  Edward Smith-Rowland  <3dw4rd@verizon.net>

	Implement SD-6: SG10 Feature Test Recommendations
	* g++.dg/cpp1y/feat-cxx11-neg.C: New.
	* g++.dg/cpp1y/feat-cxx11.C: New.
	* g++.dg/cpp1y/feat-cxx14.C: New.
	* g++.dg/cpp1y/feat-cxx98.C: New.
	* g++.dg/cpp1y/feat-cxx98-neg.C: New.
	* g++.dg/cpp1y/phoobhar.h: New.
	* g++.dg/cpp1y/testinc/phoobhar.h: New.

From-SVN: r215752
This commit is contained in:
Edward Smith-Rowland
2014-10-01 11:49:23 +00:00
committed by Edward Smith-Rowland
parent 5fbb36f4a4
commit a15f7cb8b8
41 changed files with 820 additions and 16 deletions
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libcpp/internal.h
+8
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@@ -258,6 +258,9 @@ struct lexer_state
/* Nonzero when parsing arguments to a function-like macro. */
unsigned char parsing_args;
/* Nonzero if in a __has_include__ or __has_include_next__ statement. */
unsigned char in__has_include__;
/* Nonzero if prevent_expansion is true only because output is
being discarded. */
unsigned char discarding_output;
@@ -279,6 +282,8 @@ struct spec_nodes
cpp_hashnode *n_true; /* C++ keyword true */
cpp_hashnode *n_false; /* C++ keyword false */
cpp_hashnode *n__VA_ARGS__; /* C99 vararg macros */
cpp_hashnode *n__has_include__; /* __has_include__ operator */
cpp_hashnode *n__has_include_next__; /* __has_include_next__ operator */
};
typedef struct _cpp_line_note _cpp_line_note;
@@ -645,6 +650,8 @@ extern bool _cpp_save_file_entries (cpp_reader *pfile, FILE *f);
extern bool _cpp_read_file_entries (cpp_reader *, FILE *);
extern const char *_cpp_get_file_name (_cpp_file *);
extern struct stat *_cpp_get_file_stat (_cpp_file *);
extern bool _cpp_has_header (cpp_reader *, const char *, int,
enum include_type);
/* In expr.c */
extern bool _cpp_parse_expr (cpp_reader *, bool);
@@ -680,6 +687,7 @@ extern void _cpp_init_internal_pragmas (cpp_reader *);
extern void _cpp_do_file_change (cpp_reader *, enum lc_reason, const char *,
linenum_type, unsigned int);
extern void _cpp_pop_buffer (cpp_reader *);
extern char *_cpp_bracket_include (cpp_reader *);
/* In directives.c */
struct _cpp_dir_only_callbacks