/usr/include/CLAM/PolarTmplDef.hxx is in libclam-dev 1.4.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _PolarTmplDef_
#define _PolarTmplDef_
#include <iostream>
#include <sstream>
namespace CLAM
{
// complex '+=' operator
template <class T>
const PolarTmpl<T>& PolarTmpl<T>::operator += (const PolarTmpl<T>& a)
{
T r1,i1,r2,i2,r3,i3;
r1 = fabs(a.mMag) * CLAM_cos(a.mAng);
i1 = fabs(a.mMag) * CLAM_sin(a.mAng);
r2 = fabs(mMag) * CLAM_cos(mAng);
i2 = fabs(mMag) * CLAM_sin(mAng);
r3 = r1+r2;
i3 = i1+i2;
mMag = sqrt (r3*r3 + i3*i3);
mAng = atan2 (i3,r3);
return *this;
}
// complex '-=' operator
template <class T>
const PolarTmpl<T>& PolarTmpl<T>::operator -= (const PolarTmpl<T>& a)
{
T r1,i1,r2,i2,r3,i3;
r1 = fabs(a.mMag) * CLAM_cos(a.mAng);
i1 = fabs(a.mMag) * CLAM_sin(a.mAng);
r2 = fabs(mMag) * CLAM_cos(mAng);
i2 = fabs(mMag) * CLAM_sin(mAng);
r3 = r2-r1;
i3 = i2-i1;
mMag = CLAM_sqrt (r3*r3 + i3*i3);
mAng = CLAM_atan2 (i3,r3);
return *this;
}
// polar '+' operator
template <class T>
PolarTmpl<T> PolarTmpl<T>::operator + (const PolarTmpl<T>& b) const
{
T r1,i1,r2,i2,r3,i3;
r1 = fabs(mMag) * CLAM_cos(mAng);
i1 = fabs(mMag) * CLAM_sin(mAng);
r2 = fabs(b.mMag) * CLAM_cos(b.mAng);
i2 = fabs(b.mMag) * CLAM_sin(b.mAng);
r3 = r1+r2;
i3 = i1+i2;
PolarTmpl<T> ret(CLAM_sqrt (r3*r3 + i3*i3),CLAM_atan2 (i3,r3));
return ret;
}
// polar '-' operator
template <class T>
PolarTmpl<T> PolarTmpl<T>::operator - (const PolarTmpl<T>& b) const
{
T r1,i1,r2,i2,r3,i3;
r1 = fabs(mMag) * CLAM_cos(mAng);
i1 = fabs(mMag) * CLAM_sin(mAng);
r2 = fabs(b.mMag) * CLAM_cos(b.mAng);
i2 = fabs(b.mMag) * CLAM_sin(b.mAng);
r3 = r1-r2;
i3 = i1-i2;
PolarTmpl<T> ret(CLAM_sqrt (r3*r3 + i3*i3),CLAM_atan2 (i3,r3));
return ret;
}
template <class T>
inline std::istream& operator >> (std::istream & is,
PolarTmpl<T> & a)
{
if (is.flags() & std::ios::skipws) {
char c = '\0';
do
is.get(c);
while (is && isspace(c));
if (is) is.putback(c);
}
char c = '\0';
is >> c;
if (c!='{') {
if (is) is.putback(c);
// std::cerr << "A polar starting with '" << c << "'" << std::endl;
return is;
}
T m;
T p;
if (!(is >> m)) return is;
if (!(is >> p)) return is;
if (is.flags() & std::ios::skipws) {
char c = '\0';
do
is.get(c);
while (is && isspace(c));
if (is) is.putback(c);
}
if (!is.get(c) || c!='}') return is;
a.SetMag(m);
a.SetAng(p);
return is;
}
template <class T>
std::ostream& operator << (std::ostream& myStream, const PolarTmpl<T>& a)
{
return myStream
<< "{"
<< a.Mag()
<< " "
<< a.Ang()
<< "}";
}
} // namespace CLAM
#endif // _PolarTmplDef_
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