2 files changed, 13 insertions, 9 deletions
diff --git a/kvoctrain/kvoctrain/kvt-core/kvoctraindoc.cpp b/kvoctrain/kvoctrain/kvt-core/kvoctraindoc.cpp
index 906c3753..4d364bbc 100644
--- a/kvoctrain/kvoctrain/kvt-core/kvoctraindoc.cpp
+++ b/kvoctrain/kvoctrain/kvt-core/kvoctraindoc.cpp
@@ -472,7 +472,7 @@ void kvoctrainDoc::setSizeHint (int idx, const int width)
 }
 
 
-class eraseTrans : public unary_function<kvoctrainExpr, void>
+class eraseTrans : public function<void(kvoctrainExpr)>
 {
 
 public:
@@ -516,7 +516,7 @@ void kvoctrainDoc::setOriginalIdent (const TQString &id)
 }
 
 
-class sortByOrg : public binary_function<kvoctrainExpr, kvoctrainExpr, bool>
+class sortByOrg : public function<bool(kvoctrainExpr, kvoctrainExpr)>
 {
 
 public:
@@ -540,7 +540,7 @@ public:
 
 
 class sortByLessonAndOrg_alpha
-  : public binary_function<kvoctrainExpr, kvoctrainExpr, bool>
+  : public function<bool(kvoctrainExpr, kvoctrainExpr)>
 {
 
 public:
@@ -573,7 +573,7 @@ public:
 
 
 class sortByLessonAndOrg_index
-  : public binary_function<kvoctrainExpr, kvoctrainExpr, bool>
+  : public function<bool(kvoctrainExpr, kvoctrainExpr)>
 {
 
 public:
@@ -603,7 +603,7 @@ public:
 };
 
 
-class sortByTrans : public binary_function<kvoctrainExpr, kvoctrainExpr, bool>
+class sortByTrans : public function<bool(kvoctrainExpr, kvoctrainExpr)>
 {
 
 public:
@@ -675,7 +675,7 @@ bool kvoctrainDoc::sortByLesson_index ()
 }
 
 
-class resetAll : public unary_function<kvoctrainExpr, void>
+class resetAll : public function<void(kvoctrainExpr)>
 {
 
 public:
@@ -703,7 +703,7 @@ public:
 };
 
 
-class resetOne : public unary_function<kvoctrainExpr, void>
+class resetOne : public function<void(kvoctrainExpr)>
 {
 
 public:
diff --git a/kvoctrain/kvoctrain/query-dialogs/MCQueryDlg.cpp b/kvoctrain/kvoctrain/query-dialogs/MCQueryDlg.cpp
index 19b977c1..4b287b83 100644
--- a/kvoctrain/kvoctrain/query-dialogs/MCQueryDlg.cpp
+++ b/kvoctrain/kvoctrain/query-dialogs/MCQueryDlg.cpp
@@ -40,6 +40,7 @@
 #include <tqpushbutton.h>
 
 #include <algorithm>
+#include <random>
 using namespace std;
 
 MCQueryDlg::MCQueryDlg(
@@ -137,13 +138,16 @@ void MCQueryDlg::setQuery(TQString org,
      mw->timebar->setEnabled(false);
 
    vector<TQString> strings;
+   random_device    randomDev;
+   mt19937          randomGenerator(randomDev());
+
    button_ref.clear();
    button_ref.push_back(RB_Label(mw->rb_trans1, mw->trans1));
    button_ref.push_back(RB_Label(mw->rb_trans2, mw->trans2));
    button_ref.push_back(RB_Label(mw->rb_trans3, mw->trans3));
    button_ref.push_back(RB_Label(mw->rb_trans4, mw->trans4));
    button_ref.push_back(RB_Label(mw->rb_trans5, mw->trans5));
-   random_shuffle(button_ref.begin(), button_ref.end() );
+   shuffle(button_ref.begin(), button_ref.end(), randomGenerator);
    resetButton(button_ref[0].rb, button_ref[0].label);
    resetButton(button_ref[1].rb, button_ref[1].label);
    resetButton(button_ref[2].rb, button_ref[2].label);
@@ -155,7 +159,7 @@ void MCQueryDlg::setQuery(TQString org,
    MultipleChoice mc = exp->getMultipleChoice(q_tcol);
    for (unsigned i = 0; i < TQMIN(MAX_MULTIPLE_CHOICE, mc.size()); ++i)
      strings.push_back(mc.mc(i));
-   std::random_shuffle(strings.begin(), strings.end());
+   shuffle(strings.begin(), strings.end(), randomGenerator);
 
    // always include false friend
    TQString ff;