Use noexcept specifier in gc_cpp if C++11

* gc_cpp.cc [!_MSC_VER && !__DMC__] (delete, delete[]): Rename
GC_DECL_DELETE_THROW to GC_NOEXCEPT.
* include/gc_cpp.h: Always include "new" header.
* include/gc_cpp.h [!GC_NEW_DELETE_THROW_NOT_NEEDED]
(GC_NEW_DELETE_NEED_THROW): Do not define if __BORLANDC__ or _MSC_VER,
or __WATCOMC__, or if __cplusplus>=201103L and !__clang__.
* include/gc_cpp.h (GC_DECL_DELETE_THROW): Remove.
* include/gc_cpp.h [!GC_NOEXCEPT] (GC_NOEXCEPT): Define internal macro
to except or throw(), or nothing (same as that in gc_allocator.h).
* include/gc_cpp.h [!GC_NEW_ABORTS_ON_OOM] (GC_NEW_ABORTS_ON_OOM):
Define if GC_NOEXCEPT is defined to nothing.
* include/gc_cpp.h (new(size_t,void*), new[](size_t,void*), delete):
Add GC_NOEXCEPT.

1 files changed, 4 insertions, 4 deletions

diff --git a/gc_cpp.cc b/gc_cpp.cc
index ad361b6e..b8c8ad28 100644
--- a/gc_cpp.cc
+++ b/gc_cpp.cc
@@ -37,7 +37,7 @@ built-in "new" and "delete".
     return obj;
   }
 
-  void operator delete(void* obj) GC_DECL_DELETE_THROW {
+  void operator delete(void* obj) GC_NOEXCEPT {
     GC_FREE(obj);
   }
 
@@ -48,19 +48,19 @@ built-in "new" and "delete".
       return obj;
     }
 
-    void operator delete[](void* obj) GC_DECL_DELETE_THROW {
+    void operator delete[](void* obj) GC_NOEXCEPT {
       GC_FREE(obj);
     }
 # endif // GC_OPERATOR_NEW_ARRAY
 
 # if __cplusplus > 201103L // C++14
-    void operator delete(void* obj, size_t size) GC_DECL_DELETE_THROW {
+    void operator delete(void* obj, size_t size) GC_NOEXCEPT {
       (void)size; // size is ignored
       GC_FREE(obj);
     }
 
 #   if defined(GC_OPERATOR_NEW_ARRAY) && !defined(CPPCHECK)
-      void operator delete[](void* obj, size_t size) GC_DECL_DELETE_THROW {
+      void operator delete[](void* obj, size_t size) GC_NOEXCEPT {
         (void)size;
         GC_FREE(obj);
       }