Merge #2376: Replace deprecated throw() with noexcept specifier (C++11)

24ce9a7 Use the noexcept specifier (C++11) instead of deprecated throw() (practicalswift)

Pull request description:

  Straightforward cherry-pick from bitcoin#10965

ACKs for top commit:
  furszy:
    utACK 24ce9a7
  Fuzzbawls:
    utACK 24ce9a7

Tree-SHA512: c14aea9d9c39d99250ef825e4066851ef50700e8b91f4320b278661b97e1da616cf8464d4660bf0043e2fd163be81d3b9302057b4ea4b1096eb75402bd17b49c

src/support/allocators/secure.h

@@ -27,13 +27,13 @@ struct secure_allocator : public std::allocator<T> {
     typedef typename base::reference reference;
     typedef typename base::const_reference const_reference;
     typedef typename base::value_type value_type;
-    secure_allocator() throw() {}
-    secure_allocator(const secure_allocator& a) throw() : base(a) {}
+    secure_allocator() noexcept {}
+    secure_allocator(const secure_allocator& a) noexcept : base(a) {}
     template <typename U>
-    secure_allocator(const secure_allocator<U>& a) throw() : base(a)
+    secure_allocator(const secure_allocator<U>& a) noexcept : base(a)
     {
     }
-    ~secure_allocator() throw() {}
+    ~secure_allocator() noexcept {}
     template <typename _Other>
     struct rebind {
         typedef secure_allocator<_Other> other;

src/support/allocators/zeroafterfree.h

@@ -22,13 +22,13 @@ struct zero_after_free_allocator : public std::allocator<T> {
     typedef typename base::reference reference;
     typedef typename base::const_reference const_reference;
     typedef typename base::value_type value_type;
-    zero_after_free_allocator() throw() {}
-    zero_after_free_allocator(const zero_after_free_allocator& a) throw() : base(a) {}
+    zero_after_free_allocator() noexcept {}
+    zero_after_free_allocator(const zero_after_free_allocator& a) noexcept : base(a) {}
     template <typename U>
-    zero_after_free_allocator(const zero_after_free_allocator<U>& a) throw() : base(a)
+    zero_after_free_allocator(const zero_after_free_allocator<U>& a) noexcept : base(a)
     {
     }
-    ~zero_after_free_allocator() throw() {}
+    ~zero_after_free_allocator() noexcept {}
     template <typename _Other>
     struct rebind {
         typedef zero_after_free_allocator<_Other> other;