diff options
Diffstat (limited to 'libcpp/init.c')
| -rw-r--r-- | libcpp/init.c | 81 |
1 files changed, 56 insertions, 25 deletions
diff --git a/libcpp/init.c b/libcpp/init.c index 7987798..eda17a6a 100644 --- a/libcpp/init.c +++ b/libcpp/init.c @@ -1,5 +1,5 @@ /* CPP Library. - Copyright (C) 1986-2020 Free Software Foundation, Inc. + Copyright (C) 1986-2021 Free Software Foundation, Inc. Contributed by Per Bothner, 1994-95. Based on CCCP program by Paul Rubin, June 1986 Adapted to ANSI C, Richard Stallman, Jan 1987 @@ -82,6 +82,7 @@ struct lang_flags char extended_numbers; char extended_identifiers; char c11_identifiers; + char cxx23_identifiers; char std; char digraphs; char uliterals; @@ -94,32 +95,36 @@ struct lang_flags char va_opt; char scope; char dfp_constants; + char size_t_literals; + char elifdef; }; static const struct lang_flags lang_defaults[] = -{ /* c99 c++ xnum xid c11 std digr ulit rlit udlit bincst digsep trig u8chlit vaopt scope dfp */ - /* GNUC89 */ { 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0 }, - /* GNUC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0 }, - /* GNUC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0 }, - /* GNUC17 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0 }, - /* GNUC2X */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1 }, - /* STDC89 */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, - /* STDC94 */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, - /* STDC99 */ { 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, - /* STDC11 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, - /* STDC17 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0 }, - /* STDC2X */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1 }, - /* GNUCXX */ { 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0 }, - /* CXX98 */ { 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0 }, - /* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0 }, - /* CXX11 */ { 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0 }, - /* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0 }, - /* CXX14 */ { 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0 }, - /* GNUCXX17 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0 }, - /* CXX17 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0 }, - /* GNUCXX20 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0 }, - /* CXX20 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0 }, - /* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } +{ /* c99 c++ xnum xid c11 c++23 std digr ulit rlit udlit bincst digsep trig u8chlit vaopt scope dfp szlit elifdef */ + /* GNUC89 */ { 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* GNUC99 */ { 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* GNUC11 */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* GNUC17 */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* GNUC2X */ { 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1 }, + /* STDC89 */ { 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, + /* STDC94 */ { 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, + /* STDC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, + /* STDC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, + /* STDC17 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, + /* STDC2X */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1 }, + /* GNUCXX */ { 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* CXX98 */ { 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0 }, + /* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0 }, + /* CXX11 */ { 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0 }, + /* GNUCXX14 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0 }, + /* CXX14 */ { 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0 }, + /* GNUCXX17 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 }, + /* CXX17 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0 }, + /* GNUCXX20 */ { 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 }, + /* CXX20 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0 }, + /* GNUCXX23 */ { 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0 }, + /* CXX23 */ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0 }, + /* ASM */ { 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; /* Sets internal flags correctly for a given language. */ @@ -135,6 +140,7 @@ cpp_set_lang (cpp_reader *pfile, enum c_lang lang) CPP_OPTION (pfile, extended_numbers) = l->extended_numbers; CPP_OPTION (pfile, extended_identifiers) = l->extended_identifiers; CPP_OPTION (pfile, c11_identifiers) = l->c11_identifiers; + CPP_OPTION (pfile, cxx23_identifiers) = l->cxx23_identifiers; CPP_OPTION (pfile, std) = l->std; CPP_OPTION (pfile, digraphs) = l->digraphs; CPP_OPTION (pfile, uliterals) = l->uliterals; @@ -147,6 +153,8 @@ cpp_set_lang (cpp_reader *pfile, enum c_lang lang) CPP_OPTION (pfile, va_opt) = l->va_opt; CPP_OPTION (pfile, scope) = l->scope; CPP_OPTION (pfile, dfp_constants) = l->dfp_constants; + CPP_OPTION (pfile, size_t_literals) = l->size_t_literals; + CPP_OPTION (pfile, elifdef) = l->elifdef; } /* Initialize library global state. */ @@ -399,6 +407,7 @@ static const struct builtin_macro builtin_array[] = B("__TIME__", BT_TIME, false), B("__DATE__", BT_DATE, false), B("__FILE__", BT_FILE, false), + B("__FILE_NAME__", BT_FILE_NAME, false), B("__BASE_FILE__", BT_BASE_FILE, false), B("__LINE__", BT_SPECLINE, true), B("__INCLUDE_LEVEL__", BT_INCLUDE_LEVEL, true), @@ -540,7 +549,12 @@ cpp_init_builtins (cpp_reader *pfile, int hosted) if (CPP_OPTION (pfile, cplusplus)) { - if (CPP_OPTION (pfile, lang) == CLK_CXX20 + /* C++23 is not yet a standard. For now, use an invalid + * year/month, 202100L, which is larger than 202002L. */ + if (CPP_OPTION (pfile, lang) == CLK_CXX23 + || CPP_OPTION (pfile, lang) == CLK_GNUCXX23) + _cpp_define_builtin (pfile, "__cplusplus 202100L"); + else if (CPP_OPTION (pfile, lang) == CLK_CXX20 || CPP_OPTION (pfile, lang) == CLK_GNUCXX20) _cpp_define_builtin (pfile, "__cplusplus 202002L"); else if (CPP_OPTION (pfile, lang) == CLK_CXX17 @@ -743,6 +757,23 @@ read_original_filename (cpp_reader *pfile) if (_cpp_handle_directive (pfile, token->flags & PREV_WHITE)) { read_original_directory (pfile); + + auto *penult = &linemap_check_ordinary + (LINEMAPS_LAST_MAP (pfile->line_table, false))[-1]; + if (penult[1].reason == LC_RENAME_VERBATIM) + { + /* Expunge any evidence of the original linemap. */ + pfile->line_table->highest_location + = pfile->line_table->highest_line + = penult[0].start_location; + + penult[1].start_location = penult[0].start_location; + penult[1].reason = penult[0].reason; + penult[0] = penult[1]; + pfile->line_table->info_ordinary.used--; + pfile->line_table->info_ordinary.cache = 0; + } + return true; } } |