_Ty -> _TVal for atomic_ref, one missed occurrence

stl/inc/atomic

@@ -1365,7 +1365,7 @@ struct _Atomic_integral<_Ty, 1> : _Atomic_storage<_Ty> { // atomic integral oper
     }
 
     _TVal operator--(int) noexcept {
-        return static_cast<_Ty>(_InterlockedExchangeAdd8(_Atomic_address_as<char>(this->_Storage), -1));
+        return static_cast<_TVal>(_InterlockedExchangeAdd8(_Atomic_address_as<char>(this->_Storage), -1));
     }
 
     _TVal operator--() noexcept {
@@ -1810,6 +1810,22 @@ struct _Atomic_integral_facade<_Ty&> : _Atomic_integral<_Ty&> {
         return fetch_add(_Negate(_Operand), _Order);
     }
 
+    _Ty operator++(int) const noexcept {
+        return const_cast<_Atomic_integral_facade*>(this)->_Base::operator++(0);
+    }
+
+    _Ty operator++() const noexcept {
+        return const_cast<_Atomic_integral_facade*>(this)->_Base::operator++();
+    }
+
+    _Ty operator--(int) const noexcept {
+        return const_cast<_Atomic_integral_facade*>(this)->_Base::operator--(0);
+    }
+
+    _Ty operator--() const noexcept {
+        return const_cast<_Atomic_integral_facade*>(this)->_Base::operator--();
+    }
+
     _Ty operator+=(const _Ty _Operand) const noexcept {
         return static_cast<_Ty>(fetch_add(_Operand) + _Operand);
     }

tests/std/tests/P0019R8_atomic_ref/test.cpp

@@ -133,6 +133,14 @@ void test_int_ops() {
     assert(vy.load() == 0x40);
     assert(rx.load() == 0x33);
     assert(ry.load() == 0x33);
+
+    vx--;
+    rx--;
+
+    assert(vx.load() == 0x32);
+    assert(vy.load() == 0x40);
+    assert(rx.load() == 0x32);
+    assert(ry.load() == 0x32);
 }