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- // The -*- C++ -*- float_complex class.
- // Copyright (C) 1994 Free Software Foundation
-
- // This file is part of the GNU ANSI C++ Library. This library 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, or (at your option)
- // any later version.
-
- // This library 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 library; see the file COPYING. If not, write to the Free
- // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- // As a special exception, if you link this library with files
- // compiled with a GNU compiler to produce an executable, this does not cause
- // the resulting executable to be covered by the GNU General Public License.
- // This exception does not however invalidate any other reasons why
- // the executable file might be covered by the GNU General Public License.
-
- // Written by Jason Merrill based upon the specification in the 27 May 1994
- // C++ working paper, ANSI document X3J16/94-0098.
-
- #ifndef __FCOMPLEX__
- #define __FCOMPLEX__
-
- #ifdef __GNUG__
- #pragma interface "fcomplex"
- #endif
-
- extern "C++" {
- class complex<float>
- {
- public:
- complex (float r = 0, float i = 0): re (r), im (i) { }
- explicit complex (const complex<double>& r);
- explicit complex (const complex<long double>& r);
-
- complex& operator+= (const complex&);
- complex& operator-= (const complex&);
- complex& operator*= (const complex&);
- complex& operator/= (const complex&);
-
- float real () const { return re; }
- float imag () const { return im; }
- private:
- float re, im;
-
- // These functions are specified as friends for purposes of name injection;
- // they do not actually reference private members.
- friend float real (const complex& x) { return x.real (); }
- friend float imag (const complex& x) { return x.imag (); }
- friend complex operator + (const complex&, const complex&) __attribute__ ((const));
- friend complex operator + (const complex&, float) __attribute__ ((const));
- friend complex operator + (float, const complex&) __attribute__ ((const));
- friend complex operator - (const complex&, const complex&) __attribute__ ((const));
- friend complex operator - (const complex&, float) __attribute__ ((const));
- friend complex operator - (float, const complex&) __attribute__ ((const));
- friend complex operator * (const complex&, const complex&) __attribute__ ((const));
- friend complex operator * (const complex&, float) __attribute__ ((const));
- friend complex operator * (float, const complex&) __attribute__ ((const));
- friend complex operator / (const complex&, const complex&) __attribute__ ((const));
- friend complex operator / (const complex&, float) __attribute__ ((const));
- friend complex operator / (float, const complex&) __attribute__ ((const));
- friend bool operator == (const complex&, const complex&) __attribute__ ((const));
- friend bool operator == (const complex&, float) __attribute__ ((const));
- friend bool operator == (float, const complex&) __attribute__ ((const));
- friend bool operator != (const complex&, const complex&) __attribute__ ((const));
- friend bool operator != (const complex&, float) __attribute__ ((const));
- friend bool operator != (float, const complex&) __attribute__ ((const));
- friend complex polar (float, float) __attribute__ ((const));
- friend complex pow (const complex&, const complex&) __attribute__ ((const));
- friend complex pow (const complex&, float) __attribute__ ((const));
- friend complex pow (const complex&, int) __attribute__ ((const));
- friend complex pow (float, const complex&) __attribute__ ((const));
- friend istream& operator>> (istream&, complex&);
- friend ostream& operator<< (ostream&, const complex&);
- };
- } // extern "C++"
-
- #endif
-