ldcomplex.h
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上传日期:2009-02-17
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文件大小:4k
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STL
开发平台:
Visual C++
- // The -*- C++ -*- long_double_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 __LDCOMPLEX__
- #define __LDCOMPLEX__
- #ifdef __GNUG__
- #pragma interface "ldcomplex"
- #endif
- extern "C++" {
- class complex<long double>
- {
- public:
- complex (long double r = 0, long double i = 0): re (r), im (i) { }
- complex (const complex<float>& r): re (r.real ()), im (r.imag ()) { }
- complex (const complex<double>& r): re (r.real ()), im (r.imag ()) { }
- 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); }
- long double real () const { return re; }
- long double imag () const { return im; }
- private:
- long double 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&);
- #ifndef __STRICT_ANSI__
- friend inline complex operator + (const complex& x, long double y)
- { return operator+<> (x, y); }
- friend inline complex operator + (long double x, const complex& y)
- { return operator+<> (x, y); }
- friend inline complex operator - (const complex& x, long double y)
- { return operator-<> (x, y); }
- friend inline complex operator - (long double x, const complex& y)
- { return operator-<> (x, y); }
- friend inline complex operator * (const complex& x, long double y)
- { return operator*<> (x, y); }
- friend inline complex operator * (long double x, const complex& y)
- { return operator*<> (x, y); }
- friend inline complex operator / (const complex& x, long double y)
- { return operator/<> (x, y); }
- friend inline complex operator / (long double x, const complex& y)
- { return operator/<> (x, y); }
- friend inline bool operator == (const complex& x, long double y)
- { return operator==<> (x, y); }
- friend inline bool operator == (long double x, const complex& y)
- { return operator==<> (x, y); }
- friend inline bool operator != (const complex& x, long double y)
- { return operator!=<> (x, y); }
- friend inline bool operator != (long double x, const complex& y)
- { return operator!=<> (x, y); }
- #endif /* __STRICT_ANSI__ */
- };
- inline complex<float>::complex (const complex<long double>& r)
- : re (r.real ()), im (r.imag ())
- { }
- inline complex<double>::complex (const complex<long double>& r)
- : re (r.real ()), im (r.imag ())
- { }
- } // extern "C++"
- #endif