Index: test/std/algorithms/alg.sorting/alg.heap.operations/make.heap/make_heap_comp.pass.cpp
===================================================================
--- test/std/algorithms/alg.sorting/alg.heap.operations/make.heap/make_heap_comp.pass.cpp
+++ test/std/algorithms/alg.sorting/alg.heap.operations/make.heap/make_heap_comp.pass.cpp
@@ -14,6 +14,10 @@
 //   void
 //   make_heap(Iter first, Iter last, Compare comp);
 
+// Disable MSVC++'s "comp(a, b) implies !comp(b, a)" assertion:
+#undef _ITERATOR_DEBUG_LEVEL
+#define _ITERATOR_DEBUG_LEVEL 0
+
 #include <algorithm>
 #include <functional>
 #include <memory>
Index: test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
===================================================================
--- test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
+++ test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
@@ -15,6 +15,10 @@
 //   void
 //   inplace_merge(Iter first, Iter middle, Iter last, Compare comp);
 
+// Disable MSVC++'s "comp(a, b) implies !comp(b, a)" assertion:
+#undef _ITERATOR_DEBUG_LEVEL
+#define _ITERATOR_DEBUG_LEVEL 0
+
 #include <algorithm>
 #include <functional>
 #include <random>
Index: test/std/algorithms/alg.sorting/alg.min.max/minmax_init_list_comp.pass.cpp
===================================================================
--- test/std/algorithms/alg.sorting/alg.min.max/minmax_init_list_comp.pass.cpp
+++ test/std/algorithms/alg.sorting/alg.min.max/minmax_init_list_comp.pass.cpp
@@ -17,6 +17,10 @@
 //
 //  Complexity: At most (3/2) * t.size() applications of the corresponding predicate.
 
+// Disable MSVC++'s "comp(a, b) implies !comp(b, a)" assertion:
+#undef _ITERATOR_DEBUG_LEVEL
+#define _ITERATOR_DEBUG_LEVEL 0
+
 #include <algorithm>
 #include <functional>
 #include <cassert>