[C++17] Remove inheritance from std::binary_function, std::unary_function.

[ginac.git] / ginac / ex.h

diff --git a/ginac/ex.h b/ginac/ex.h
index 8512a4c7157e7ee26e5179557ac745e0326cc47b..3b980aabafff98f9ae6bfe20c9b50b28ded03607 100644 (file)
--- a/ginac/ex.h
+++ b/ginac/ex.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's light-weight expression handles. */
 
 /*
- *  GiNaC Copyright (C) 1999-2015 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2016 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -29,6 +29,7 @@
 #include <functional>
 #include <iosfwd>
 #include <iterator>
+#include <memory>
 #include <stack>
 
 namespace GiNaC {
@@ -114,8 +115,8 @@ public:
        const_postorder_iterator postorder_end() const noexcept;
 
        // evaluation
-       ex eval(int level = 0) const { return bp->eval(level); }
-       ex evalf(int level = 0) const { return bp->evalf(level); }
+       ex eval() const { return bp->eval(); }
+       ex evalf() const { return bp->evalf(); }
        ex evalm() const { return bp->evalm(); }
        ex eval_ncmul(const exvector & v) const { return bp->eval_ncmul(v); }
        ex eval_integ() const { return bp->eval_integ(); }
@@ -182,7 +183,7 @@ public:
        ex series(const ex & r, int order, unsigned options = 0) const;
 
        // rational functions
-       ex normal(int level = 0) const;
+       ex normal() const;
        ex to_rational(exmap & repl) const;
        ex to_rational(lst & repl_lst) const;
        ex to_polynomial(exmap & repl) const;
@@ -672,19 +673,19 @@ inline bool are_ex_trivially_equal(const ex &e1, const ex &e2)
 }
 
 /* Function objects for STL sort() etc. */
-struct ex_is_less : public std::binary_function<ex, ex, bool> {
+struct ex_is_less {
        bool operator() (const ex &lh, const ex &rh) const { return lh.compare(rh) < 0; }
 };
 
-struct ex_is_equal : public std::binary_function<ex, ex, bool> {
+struct ex_is_equal {
        bool operator() (const ex &lh, const ex &rh) const { return lh.is_equal(rh); }
 };
 
-struct op0_is_equal : public std::binary_function<ex, ex, bool> {
+struct op0_is_equal {
        bool operator() (const ex &lh, const ex &rh) const { return lh.op(0).is_equal(rh.op(0)); }
 };
 
-struct ex_swap : public std::binary_function<ex, ex, void> {
+struct ex_swap {
        void operator() (ex &lh, ex &rh) const { lh.swap(rh); }
 };
 
@@ -736,8 +737,8 @@ inline ex denom(const ex & thisex)
 inline ex numer_denom(const ex & thisex)
 { return thisex.numer_denom(); }
 
-inline ex normal(const ex & thisex, int level=0)
-{ return thisex.normal(level); }
+inline ex normal(const ex & thisex)
+{ return thisex.normal(); }
 
 inline ex to_rational(const ex & thisex, lst & repl_lst)
 { return thisex.to_rational(repl_lst); }
@@ -754,11 +755,11 @@ inline ex to_polynomial(const ex & thisex, lst & repl_lst)
 inline ex collect(const ex & thisex, const ex & s, bool distributed = false)
 { return thisex.collect(s, distributed); }
 
-inline ex eval(const ex & thisex, int level = 0)
-{ return thisex.eval(level); }
+inline ex eval(const ex & thisex)
+{ return thisex.eval(); }
 
-inline ex evalf(const ex & thisex, int level = 0)
-{ return thisex.evalf(level); }
+inline ex evalf(const ex & thisex)
+{ return thisex.evalf(); }
 
 inline ex evalm(const ex & thisex)
 { return thisex.evalm(); }
@@ -835,7 +836,7 @@ protected:
        ex (*ptr)(const ex &);
 public:
        explicit pointer_to_map_function(ex x(const ex &)) : ptr(x) {}
-       ex operator()(const ex & e) { return ptr(e); }
+       ex operator()(const ex & e) override { return ptr(e); }
 };
 
 template<class T1>
@@ -845,7 +846,7 @@ protected:
        T1 arg1;
 public:
        explicit pointer_to_map_function_1arg(ex x(const ex &, T1), T1 a1) : ptr(x), arg1(a1) {}
-       ex operator()(const ex & e) { return ptr(e, arg1); }
+       ex operator()(const ex & e) override { return ptr(e, arg1); }
 };
 
 template<class T1, class T2>
@@ -856,7 +857,7 @@ protected:
        T2 arg2;
 public:
        explicit pointer_to_map_function_2args(ex x(const ex &, T1, T2), T1 a1, T2 a2) : ptr(x), arg1(a1), arg2(a2) {}
-       ex operator()(const ex & e) { return ptr(e, arg1, arg2); }
+       ex operator()(const ex & e) override { return ptr(e, arg1, arg2); }
 };
 
 template<class T1, class T2, class T3>
@@ -868,7 +869,7 @@ protected:
        T3 arg3;
 public:
        explicit pointer_to_map_function_3args(ex x(const ex &, T1, T2, T3), T1 a1, T2 a2, T3 a3) : ptr(x), arg1(a1), arg2(a2), arg3(a3) {}
-       ex operator()(const ex & e) { return ptr(e, arg1, arg2, arg3); }
+       ex operator()(const ex & e) override { return ptr(e, arg1, arg2, arg3); }
 };
 
 template<class C>
@@ -878,7 +879,7 @@ protected:
        C &c;
 public:
        explicit pointer_to_member_to_map_function(ex (C::*member)(const ex &), C &obj) : ptr(member), c(obj) {}
-       ex operator()(const ex & e) { return (c.*ptr)(e); }
+       ex operator()(const ex & e) override { return (c.*ptr)(e); }
 };
 
 template<class C, class T1>
@@ -889,7 +890,7 @@ protected:
        T1 arg1;
 public:
        explicit pointer_to_member_to_map_function_1arg(ex (C::*member)(const ex &, T1), C &obj, T1 a1) : ptr(member), c(obj), arg1(a1) {}
-       ex operator()(const ex & e) { return (c.*ptr)(e, arg1); }
+       ex operator()(const ex & e) override { return (c.*ptr)(e, arg1); }
 };
 
 template<class C, class T1, class T2>
@@ -901,7 +902,7 @@ protected:
        T2 arg2;
 public:
        explicit pointer_to_member_to_map_function_2args(ex (C::*member)(const ex&, T1, T2), C &obj, T1 a1, T2 a2) : ptr(member), c(obj), arg1(a1), arg2(a2) {}
-       ex operator()(const ex & e) { return (c.*ptr)(e, arg1, arg2); }
+       ex operator()(const ex & e) override { return (c.*ptr)(e, arg1, arg2); }
 };
 
 template<class C, class T1, class T2, class T3>
@@ -914,7 +915,7 @@ protected:
        T3 arg3;
 public:
        explicit pointer_to_member_to_map_function_3args(ex (C::*member)(const ex &, T1, T2, T3), C &obj, T1 a1, T2 a2, T3 a3) : ptr(member), c(obj), arg1(a1), arg2(a2), arg3(a3) {}
-       ex operator()(const ex & e) { return (c.*ptr)(e, arg1, arg2, arg3); }
+       ex operator()(const ex & e) override { return (c.*ptr)(e, arg1, arg2, arg3); }
 };
 
 inline ex ex::map(ex f(const ex &)) const
@@ -969,20 +970,6 @@ inline void swap(GiNaC::ex &a, GiNaC::ex &b)
        a.swap(b);
 }
 
-/** Specialization of std::iter_swap() for vector<ex> iterators. */
-template <>
-inline void iter_swap(vector<GiNaC::ex>::iterator i1, vector<GiNaC::ex>::iterator i2)
-{
-       i1->swap(*i2);
-}
-
-/** Specialization of std::iter_swap() for list<ex> iterators. */
-template <>
-inline void iter_swap(list<GiNaC::ex>::iterator i1, list<GiNaC::ex>::iterator i2)
-{
-       i1->swap(*i2);
-}
-
 } // namespace std
 
 #endif // ndef GINAC_EX_H