[libcxx-commits] [PATCH] D91074: [libcxx] check _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE first in __locale

[Xiang Xiao via Phabricator via libcxx-commits]

xiaoxiang781216 created this revision.
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xiaoxiang781216 requested review of this revision.

just like what's done in __locale.cpp

Co-authored-by: Chao An <anchao at xiaomi.com>

Signed-off-by: Xiang Xiao <xiaoxiang at xiaomi.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91074

Files:
  libcxx/include/__locale


Index: libcxx/include/__locale
===================================================================
--- libcxx/include/__locale
+++ libcxx/include/__locale
@@ -397,7 +397,26 @@
 class _LIBCPP_TYPE_VIS ctype_base
 {
 public:
-#if defined(__GLIBC__)
+#if defined(_LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE)
+    typedef unsigned long mask;
+    static const mask space  = 1<<0;
+    static const mask print  = 1<<1;
+    static const mask cntrl  = 1<<2;
+    static const mask upper  = 1<<3;
+    static const mask lower  = 1<<4;
+    static const mask alpha  = 1<<5;
+    static const mask digit  = 1<<6;
+    static const mask punct  = 1<<7;
+    static const mask xdigit = 1<<8;
+    static const mask blank  = 1<<9;
+#if defined(__BIONIC__)
+    // Historically this was a part of regex_traits rather than ctype_base. The
+    // historical value of the constant is preserved for ABI compatibility.
+    static const mask __regex_word = 0x8000;
+#else
+    static const mask __regex_word = 1<<10;
+#endif // defined(__BIONIC__)
+#elif defined(__GLIBC__)
     typedef unsigned short mask;
     static const mask space  = _ISspace;
     static const mask print  = _ISprint;
@@ -486,24 +505,7 @@
 # define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_ALPHA
 # define _LIBCPP_CTYPE_MASK_IS_COMPOSITE_XDIGIT
 #else
-    typedef unsigned long mask;
-    static const mask space  = 1<<0;
-    static const mask print  = 1<<1;
-    static const mask cntrl  = 1<<2;
-    static const mask upper  = 1<<3;
-    static const mask lower  = 1<<4;
-    static const mask alpha  = 1<<5;
-    static const mask digit  = 1<<6;
-    static const mask punct  = 1<<7;
-    static const mask xdigit = 1<<8;
-    static const mask blank  = 1<<9;
-#if defined(__BIONIC__)
-    // Historically this was a part of regex_traits rather than ctype_base. The
-    // historical value of the constant is preserved for ABI compatibility.
-    static const mask __regex_word = 0x8000;
-#else
-    static const mask __regex_word = 1<<10;
-#endif // defined(__BIONIC__)
+#error unkown classic_table, try _LIBCPP_PROVIDES_DEFAULT_RUNE_TABLE
 #endif
     static const mask alnum  = alpha | digit;
     static const mask graph  = alnum | punct;


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