| // 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& r) { return __doapl (this, r); } |
| complex& operator-= (const complex& r) { return __doami (this, r); } |
| complex& operator*= (const complex& r) { return __doaml (this, r); } |
| complex& operator/= (const complex& r) { return __doadv (this, r); } |
| |
| float real () const { return re; } |
| float imag () const { return im; } |
| private: |
| float re, im; |
| |
| friend complex& __doapl (complex *, const complex&); |
| friend complex& __doami (complex *, const complex&); |
| friend complex& __doaml (complex *, const complex&); |
| friend complex& __doadv (complex *, const complex&); |
| |
| // 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 |