/usr/include/gmsh/SPoint2.h is in libgmsh-dev 2.8.5+dfsg-1.1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | // Gmsh - Copyright (C) 1997-2014 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file for license information. Please report all
// bugs and problems to the public mailing list <gmsh@geuz.org>.
#ifndef _SPOINT2_H_
#define _SPOINT2_H_
#include <math.h>
// A point in 2-space
class SPoint2 {
protected:
double P[2];
public:
SPoint2(double x=0.0, double y=0.0) { P[0] = x; P[1] = y; }
SPoint2(double *p) { P[0] = p[0]; P[1] = p[1]; }
SPoint2(const SPoint2 &pt) { P[0] = pt.P[0]; P[1] = pt.P[1]; }
virtual ~SPoint2() {}
void setPosition(double xx, double yy);
void getPosition(double *xx, double *yy) const;
void position(double *) const;
inline double x(void) const;
inline double y(void) const;
double &operator[](int);
double operator[](int) const;
double distance(const SPoint2 &p)const;
SPoint2 &operator=(const SPoint2 &p);
void operator+=(const SPoint2 &p);
void operator-=(const SPoint2 &p);
void operator*=(double mult);
SPoint2 operator*(double mult);
operator double *() { return P; }
bool operator < (const SPoint2 &other) const
{
if(other.P[0] < P[0]) return true;
if(other.P[0] > P[0]) return false;
if(other.P[1] < P[1]) return true;
return false;
}
};
inline SPoint2 operator + (const SPoint2 &a, const SPoint2 &b)
{ return SPoint2(a.x()+b.x(),a.y()+b.y()); }
inline SPoint2 operator - (const SPoint2 &a, const SPoint2 &b)
{ return SPoint2(a.x()-b.x(),a.y()-b.y()); }
inline void SPoint2::setPosition(double xx, double yy)
{ P[0] = xx; P[1] = yy; }
inline void SPoint2::getPosition(double *xx, double *yy) const
{ *xx = P[0]; *yy = P[1]; }
inline void SPoint2::position(double *p) const
{ p[0] = P[0]; p[1] = P[1]; }
inline double SPoint2::x(void) const
{ return P[0]; }
inline double SPoint2::y(void) const
{ return P[1]; }
inline SPoint2 & SPoint2::operator=(const SPoint2 &p)
{ P[0] = p.P[0]; P[1]=p.P[1]; return *this; }
inline double &SPoint2::operator[](int i)
{ return P[i]; }
inline double SPoint2::operator[](int i) const
{ return P[i]; }
inline void SPoint2::operator+=(const SPoint2 &p)
{ P[0] += p.P[0]; P[1] += p.P[1];}
inline void SPoint2::operator-=(const SPoint2 &p)
{ P[0] -= p.P[0]; P[1] -= p.P[1];}
inline void SPoint2::operator*=(double mult)
{ P[0] *= mult; P[1] *= mult; }
inline SPoint2 SPoint2::operator*(double mult)
{ return SPoint2(P[0]*mult, P[1]*mult); }
inline double SPoint2::distance(const SPoint2 &p)const
{
double x = P[0] - p.P[0], y = P[1] - p.P[1];
return sqrt(x * x + y * y);
}
#endif
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