diff options
Diffstat (limited to 'gcc/cppinit.c')
| -rw-r--r-- | gcc/cppinit.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/gcc/cppinit.c b/gcc/cppinit.c index cdcac25..d6e7ae4 100644 --- a/gcc/cppinit.c +++ b/gcc/cppinit.c @@ -73,22 +73,20 @@ struct lang_flags char cplusplus; char extended_numbers; char std; - char dollars_in_ident; char cplusplus_comments; char digraphs; }; -/* ??? Enable $ in identifiers in assembly? */ static const struct lang_flags lang_defaults[] = -{ /* c99 c++ xnum std dollar c++comm digr */ - /* GNUC89 */ { 0, 0, 1, 0, 1, 1, 1 }, - /* GNUC99 */ { 1, 0, 1, 0, 1, 1, 1 }, - /* STDC89 */ { 0, 0, 0, 1, 0, 0, 0 }, - /* STDC94 */ { 0, 0, 0, 1, 0, 0, 1 }, - /* STDC99 */ { 1, 0, 1, 1, 0, 1, 1 }, - /* GNUCXX */ { 0, 1, 1, 0, 1, 1, 1 }, - /* CXX98 */ { 0, 1, 1, 1, 0, 1, 1 }, - /* ASM */ { 0, 0, 1, 0, 0, 1, 0 } +{ /* c99 c++ xnum std // digr */ + /* GNUC89 */ { 0, 0, 1, 0, 1, 1 }, + /* GNUC99 */ { 1, 0, 1, 0, 1, 1 }, + /* STDC89 */ { 0, 0, 0, 1, 0, 0 }, + /* STDC94 */ { 0, 0, 0, 1, 0, 1 }, + /* STDC99 */ { 1, 0, 1, 1, 1, 1 }, + /* GNUCXX */ { 0, 1, 1, 0, 1, 1 }, + /* CXX98 */ { 0, 1, 1, 1, 1, 1 }, + /* ASM */ { 0, 0, 1, 0, 1, 0 } }; /* Sets internal flags correctly for a given language. */ @@ -106,7 +104,6 @@ cpp_set_lang (pfile, lang) CPP_OPTION (pfile, extended_numbers) = l->extended_numbers; CPP_OPTION (pfile, std) = l->std; CPP_OPTION (pfile, trigraphs) = l->std; - CPP_OPTION (pfile, dollars_in_ident) = l->dollars_in_ident; CPP_OPTION (pfile, cplusplus_comments) = l->cplusplus_comments; CPP_OPTION (pfile, digraphs) = l->digraphs; } @@ -153,6 +150,7 @@ cpp_create_reader (lang, table) CPP_OPTION (pfile, warn_endif_labels) = 1; CPP_OPTION (pfile, warn_deprecated) = 1; CPP_OPTION (pfile, warn_long_long) = !CPP_OPTION (pfile, c99); + CPP_OPTION (pfile, dollars_in_ident) = 1; /* Default CPP arithmetic to something sensible for the host for the benefit of dumb users like fix-header. */ @@ -572,4 +570,11 @@ post_options (pfile) CPP_OPTION (pfile, trigraphs) = 0; CPP_OPTION (pfile, warn_trigraphs) = 0; } + + /* C99 permits implementation-defined characters in identifiers. + The documented meaning of -std= is to turn off extensions that + conflict with the specified standard, and since a strictly + conforming program cannot contain a '$', we do not condition + their acceptance on the -std= setting. */ + pfile->warn_dollars = CPP_PEDANTIC (pfile) && !CPP_OPTION (pfile, c99); } |