Implement SD-6: SG10 Feature Test Recommendations
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
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41 changed files with 820 additions and 16 deletions
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@ -1041,6 +1041,9 @@ open_file_failed (cpp_reader *pfile, _cpp_file *file, int angle_brackets)
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int sysp = pfile->line_table->highest_line > 1 && pfile->buffer ? pfile->buffer->sysp : 0;
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bool print_dep = CPP_OPTION (pfile, deps.style) > (angle_brackets || !!sysp);
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if (pfile->state.in__has_include__)
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return;
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errno = file->err_no;
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if (print_dep && CPP_OPTION (pfile, deps.missing_files) && errno == ENOENT)
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{
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@ -1957,3 +1960,18 @@ check_file_against_entries (cpp_reader *pfile ATTRIBUTE_UNUSED,
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return bsearch (&d, pchf->entries, pchf->count, sizeof (struct pchf_entry),
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pchf_compare) != NULL;
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}
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/* Return true if the file FNAME is found in the appropriate include file path
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as indicated by ANGLE_BRACKETS. */
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bool
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_cpp_has_header (cpp_reader *pfile, const char *fname, int angle_brackets,
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enum include_type type)
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{
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cpp_dir *start_dir = search_path_head (pfile, fname, angle_brackets, type);
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_cpp_file *file = _cpp_find_file (pfile, fname, start_dir,
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/*fake=*/false, angle_brackets,
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/*implicit_preinclude=*/false);
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return file->err_no != ENOENT;
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}
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