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Diffstat (limited to 'gcc/c-family/c-opts.c')
-rw-r--r--gcc/c-family/c-opts.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/gcc/c-family/c-opts.c b/gcc/c-family/c-opts.c
index cdbcd6c..3662aa3 100644
--- a/gcc/c-family/c-opts.c
+++ b/gcc/c-family/c-opts.c
@@ -111,6 +111,7 @@ static void set_std_cxx98 (int);
static void set_std_cxx11 (int);
static void set_std_cxx14 (int);
static void set_std_cxx17 (int);
+static void set_std_cxx2a (int);
static void set_std_c89 (int, int);
static void set_std_c99 (int);
static void set_std_c11 (int);
@@ -637,6 +638,12 @@ c_common_handle_option (size_t scode, const char *arg, int value,
set_std_cxx17 (code == OPT_std_c__17 /* ISO */);
break;
+ case OPT_std_c__2a:
+ case OPT_std_gnu__2a:
+ if (!preprocessing_asm_p)
+ set_std_cxx2a (code == OPT_std_c__2a /* ISO */);
+ break;
+
case OPT_std_c90:
case OPT_std_iso9899_199409:
if (!preprocessing_asm_p)
@@ -938,7 +945,7 @@ c_common_post_options (const char **pfilename)
warn_narrowing = 1;
/* Unless -f{,no-}ext-numeric-literals has been used explicitly,
- for -std=c++{11,14,17} default to -fno-ext-numeric-literals. */
+ for -std=c++{11,14,17,2a} default to -fno-ext-numeric-literals. */
if (flag_iso && !global_options_set.x_flag_ext_numeric_literals)
cpp_opts->ext_numeric_literals = 0;
}
@@ -1589,7 +1596,7 @@ set_std_cxx14 (int iso)
flag_no_gnu_keywords = iso;
flag_no_nonansi_builtin = iso;
flag_iso = iso;
- /* C++11 includes the C99 standard library. */
+ /* C++14 includes the C99 standard library. */
flag_isoc94 = 1;
flag_isoc99 = 1;
cxx_dialect = cxx14;
@@ -1604,7 +1611,7 @@ set_std_cxx17 (int iso)
flag_no_gnu_keywords = iso;
flag_no_nonansi_builtin = iso;
flag_iso = iso;
- /* C++11 includes the C99 standard library. */
+ /* C++17 includes the C11 standard library. */
flag_isoc94 = 1;
flag_isoc99 = 1;
flag_isoc11 = 1;
@@ -1612,6 +1619,22 @@ set_std_cxx17 (int iso)
lang_hooks.name = "GNU C++17";
}
+/* Set the C++ 202a draft standard (without GNU extensions if ISO). */
+static void
+set_std_cxx2a (int iso)
+{
+ cpp_set_lang (parse_in, iso ? CLK_CXX2A: CLK_GNUCXX2A);
+ flag_no_gnu_keywords = iso;
+ flag_no_nonansi_builtin = iso;
+ flag_iso = iso;
+ /* C++17 includes the C11 standard library. */
+ flag_isoc94 = 1;
+ flag_isoc99 = 1;
+ flag_isoc11 = 1;
+ cxx_dialect = cxx2a;
+ lang_hooks.name = "GNU C++17"; /* Pretend C++17 until standardization. */
+}
+
/* Args to -d specify what to dump. Silently ignore
unrecognized options; they may be aimed at toplev.c. */
static void