Use random_shuffle in a future-proof way

Variants of random_shuffle supported in C++11 have been deprecated in
later versions of the standard. Specifying a random-number generator is
supported as of C++11 and not (yet) deprecated in any later version.

Author: tautschnig

unit/util/interval/get_extreme.cpp

@@ -13,6 +13,8 @@
 #include <util/simplify_expr.h>
 #include <util/symbol_table.h>
 
+#include <random>
+
 #define V(X) (bvrep2integer(X.get(ID_value).c_str(), 32, true))
 #define V_(X) (bvrep2integer(X.c_str(), 32, true))
 #define CEV(X) (from_integer(mp_integer(X), signedbv_typet(32)))
@@ -147,7 +149,9 @@ SCENARIO("get extreme exprt value", "[core][analyses][interval][get_extreme]")
 
     WHEN("All from [-100:100] are shuffled and selected")
     {
-      std::random_shuffle(ve.begin(), ve.end());
+      std::random_device rd;
+      std::mt19937 g(rd());
+      std::shuffle(ve.begin(), ve.end(), g);
 
       exprt min = constant_interval_exprt::get_extreme(ve, true);
       exprt max = constant_interval_exprt::get_extreme(ve, false);