Create a default rune table for libc++. Initial setting - never enabled. The expectation is that some targets (Android, cough) will enable it. Note that this is an implementation detail, not an interface change.

llvm-svn: 231252
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 66599d8ea891025e922eced18851c8a7670bf2df
diff --git a/src/locale.cpp b/src/locale.cpp
index 83052f6..d63df20 100644
--- a/src/locale.cpp
+++ b/src/locale.cpp
@@ -1016,6 +1016,87 @@
 extern "C" const int ** __ctype_toupper_loc();
 #endif
 
+#ifdef _LIBCPP_HAS_DEFAULT_RUNE_TABLE
+const ctype<char>::mask*
+ctype<char>::classic_table()  _NOEXCEPT
+{
+    static _LIBCPP_CONSTEXPR const ctype<char>::mask builtin_table[table_size] = {
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl | space | blank,
+        cntrl | space,                  cntrl | space,
+        cntrl | space,                  cntrl | space,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        cntrl,                          cntrl,
+        space | blank | print,          punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        digit | print | xdigit,         digit | print | xdigit,
+        digit | print | xdigit,         digit | print | xdigit,
+        digit | print | xdigit,         digit | print | xdigit,
+        digit | print | xdigit,         digit | print | xdigit,
+        digit | print | xdigit,         digit | print | xdigit,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  upper | xdigit | print | alpha,
+        upper | xdigit | print | alpha, upper | xdigit | print | alpha,
+        upper | xdigit | print | alpha, upper | xdigit | print | alpha,
+        upper | xdigit | print | alpha, upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          upper | print | alpha,
+        upper | print | alpha,          punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  lower | xdigit | print | alpha,
+        lower | xdigit | print | alpha, lower | xdigit | print | alpha,
+        lower | xdigit | print | alpha, lower | xdigit | print | alpha,
+        lower | xdigit | print | alpha, lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          lower | print | alpha,
+        lower | print | alpha,          punct | print,
+        punct | print,                  punct | print,
+        punct | print,                  cntrl,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    };
+    return builtin_table;
+}
+#else
 const ctype<char>::mask*
 ctype<char>::classic_table()  _NOEXCEPT
 {
@@ -1049,6 +1130,7 @@
     return NULL;
 #endif
 }
+#endif
 
 #if defined(__GLIBC__)
 const int*