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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/Pair.h b/Build/source/texk/dvisvgm/dvisvgm-src/src/Pair.h
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+/*************************************************************************
+** Pair.h **
+** **
+** This file is part of dvisvgm -- the DVI to SVG converter **
+** Copyright (C) 2005-2015 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** 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 the Free Software Foundation; either version 3 of **
+** the License, or (at your option) any later version. **
+** **
+** This program is distributed in the hope that it will be useful, but **
+** WITHOUT ANY WARRANTY; without even the implied warranty of **
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
+** GNU General Public License for more details. **
+** **
+** You should have received a copy of the GNU General Public License **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#ifndef DVISVGM_PAIR_H
+#define DVISVGM_PAIR_H
+
+#include <cmath>
+#include <ostream>
+#include "macros.h"
+#include "types.h"
+
+template <typename T>
+class Pair
+{
+ public:
+ Pair (T x=0, T y=0) : _x(x), _y(y) {}
+ Pair operator += (const Pair &p) {_x += p._x; _y += p._y; return *this;}
+ Pair operator -= (const Pair &p) {_x -= p._x; _y -= p._y; return *this;}
+ Pair operator *= (T c) {_x *= c; _y *= c; return *this;}
+ Pair operator /= (T c) {_x /= c; _y /= c; return *this;}
+ Pair ortho () const {return Pair(-_y, _x);}
+ double length () const {return std::sqrt(_x*_x + _y*_y);}
+ bool operator == (const Pair &p) const {return _x == p._x && _y == p._y;}
+ bool operator != (const Pair &p) const {return _x != p._x || _y != p._y;}
+ T x () const {return _x;}
+ T y () const {return _y;}
+ void x (const T &xx) {_x = xx;}
+ void y (const T &yy) {_y = yy;}
+ std::ostream& write (std::ostream &os) const {return os << '(' << _x << ',' << _y << ')';}
+
+ private:
+ T _x, _y;
+};
+
+
+struct Pair32 : public Pair<Int32>
+{
+ Pair32 (Int32 x=0, Int32 y=0) : Pair<Int32>(x, y) {}
+ explicit Pair32 (double x, double y) : Pair<Int32>(Int32(x+0.5), Int32(y+0.5)) {}
+ Pair32 (const Pair<Int32> &p) : Pair<Int32>(p) {}
+// operator Pair<Int32> () {return *this;}
+};
+
+typedef Pair<double> DPair;
+
+template <typename T>
+IMPLEMENT_ARITHMETIC_OPERATOR(Pair<T>, +)
+
+template <typename T>
+IMPLEMENT_ARITHMETIC_OPERATOR(Pair<T>, -)
+
+template <typename T>
+IMPLEMENT_ARITHMETIC_OPERATOR2(Pair<T>, T, *)
+
+template <typename T>
+IMPLEMENT_ARITHMETIC_OPERATOR2(Pair<T>, T, /)
+
+template <typename T>
+IMPLEMENT_OUTPUT_OPERATOR(Pair<T>)
+
+IMPLEMENT_ARITHMETIC_OPERATOR2(Pair32, Int32, *)
+#endif