fix(deprecated): guard from bind and *_function

Deprecated since C++11, removed in C++17.

eo/contrib/MGE/eoVirus.h

@@ -108,7 +108,12 @@ public:
         if (is) {
             virus.resize(bits.size());
             std::transform(bits.begin(), bits.end(), virus.begin(),
+#if __cplusplus >= 201103L
+                           std::bind(std::equal_to<char>(), std::placeholders::_1, '1'));
+#else
+                           // Deprecated since C++11.
                            std::bind2nd(std::equal_to<char>(), '1'));
+#endif
         }
     }
 

eo/src/eoFunctor.h

@@ -114,7 +114,12 @@ eoFunctorBase::procedure_tag functor_category(const eoF<R>&)
     result_type
 **/
 template <class A1, class R>
+#if __cplusplus >= 201103L
+class eoUF : public eoFunctorBase, public std::function<R(A1)>
+#else
+// Deprecated in C++11
 class eoUF : public eoFunctorBase, public std::unary_function<A1, R>
+#endif
 {
 public :
 
@@ -151,7 +156,12 @@ eoFunctorBase::unary_function_tag functor_category(const eoUF<A1, R>&)
     result_type
 **/
 template <class A1, class A2, class R>
+#if __cplusplus >= 201103L
+class eoBF : public eoFunctorBase, public std::function<R(A1, A2)>
+#else
+// Deprecated in C++11
 class eoBF : public eoFunctorBase, public std::binary_function<A1, A2, R>
+#endif
 {
 public :
         /// virtual dtor here so there is no need to define it in derived classes

eo/src/eoSTLFunctor.h

@@ -79,7 +79,12 @@ void eoSTLF<void>::operator()(void)
   respectively
 */
 template <class A1, class R>
+#if __cplusplus >= 201103L
+class eoSTLUF : public std::function<R(A1)>
+#else
+// Deprecated since C++11
 class eoSTLUF : public std::unary_function<A1, R>
+#endif
 {
   public:
     eoSTLUF(eoUF<A1,R>& _f) : f(_f) {}
@@ -102,7 +107,12 @@ class eoSTLUF : public std::unary_function<A1, R>
   respectively
 */
 template <class A1, class A2, class R>
+#if __cplusplus >= 201103L
+class eoSTLBF : public std::function<R(A1, A2)>
+#else
+// Deprecated since C++11
 class eoSTLBF : public std::binary_function<A1, A2, R>
+#endif
 {
   public:
     eoSTLBF(eoUF<A1,R>& _f) : f(_f) {}