[libcxxabi] r248129 - Let cxa_demangle.cpp compile with gcc/libstdc++ 4.8 and clang-cl/MSVC2013's STL.

[Nico Weber via cfe-commits]

Author: nico
Date: Sun Sep 20 13:10:46 2015
New Revision: 248129

URL: http://llvm.org/viewvc/llvm-project?rev=248129&view=rev
Log:
Let cxa_demangle.cpp compile with gcc/libstdc++ 4.8 and clang-cl/MSVC2013's STL.

libstdc++ needs a few typedefs in malloc_alloc. MSVC's STL needs rebind(),
construct(), destroy().  MSVC2013 also has no snprintf, but it exists in 2015.

Modified:
    libcxxabi/trunk/src/cxa_demangle.cpp

Modified: libcxxabi/trunk/src/cxa_demangle.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxxabi/trunk/src/cxa_demangle.cpp?rev=248129&r1=248128&r2=248129&view=diff
==============================================================================
--- libcxxabi/trunk/src/cxa_demangle.cpp (original)
+++ libcxxabi/trunk/src/cxa_demangle.cpp Sun Sep 20 13:10:46 2015
@@ -18,6 +18,13 @@
 #include <cstring>
 #include <cctype>
 
+#ifdef _MSC_VER
+// snprintf is implemented in VS 2015
+#if _MSC_VER < 1900
+#define snprintf _snprintf_s
+#endif
+#endif
+
 namespace __cxxabiv1
 {
 
@@ -4818,6 +4825,12 @@ class malloc_alloc
 {
 public:
     typedef T value_type;
+    typedef T& reference;
+    typedef const T& const_reference;
+    typedef T* pointer;
+    typedef const T* const_pointer;
+    typedef std::size_t size_type;
+    typedef std::ptrdiff_t difference_type;
 
     malloc_alloc() = default;
     template <class U> malloc_alloc(const malloc_alloc<U>&) noexcept {}
@@ -4830,6 +4843,17 @@ public:
     {
         std::free(p);
     }
+
+    template <class U> struct rebind { using other = malloc_alloc<U>; };
+    template <class U, class... Args>
+    void construct(U* p, Args&&... args)
+    {
+        ::new ((void*)p) U(std::forward<Args>(args)...);
+    }
+    void destroy(T* p)
+    {
+        p->~T();
+    }
 };
 
 template <class T, class U>