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os/ossrv/genericopenlibs/cppstdlib/stl/src/complex_io.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 /*

     2  * Copyright (c) 1999

     3  * Silicon Graphics Computer Systems, Inc.

     4  *

     5  * Copyright (c) 1999

     6  * Boris Fomitchev

     7  *

     8  * This material is provided "as is", with absolutely no warranty expressed

     9  * or implied. Any use is at your own risk.

    10  *

    11  * Permission to use or copy this software for any purpose is hereby granted

    12  * without fee, provided the above notices are retained on all copies.

    13  * Permission to modify the code and to distribute modified code is granted,

    14  * provided the above notices are retained, and a notice that the code was

    15  * modified is included with the above copyright notice.

    16  *

    17  */

    18 

    19 #include "stlport_prefix.h"

    20 

    21 #include <complex>

    22 #include <istream>

    23 

    24 _STLP_BEGIN_NAMESPACE

    25 

    26 #if !(defined (_STLP_MSVC) && _STLP_MSVC < 1200)

    27 

    28 // Specializations for narrow characters; lets us avoid the nuisance of

    29 // widening.

    30 _STLP_OPERATOR_SPEC

    31 basic_ostream<char, char_traits<char> >& _STLP_CALL

    32 operator<< (basic_ostream<char, char_traits<char> >& __os, const complex<float>& __z)

    33 { return __os << '(' << (double)__z.real() << ',' << (double)__z.imag() << ')'; }

    34 

    35 _STLP_OPERATOR_SPEC

    36 basic_ostream<char, char_traits<char> >& _STLP_CALL

    37 operator<< (basic_ostream<char, char_traits<char> >& __os, const complex<double>& __z)

    38 { return __os << '(' << __z.real() << ',' << __z.imag() << ')'; }

    39 

    40 #  ifndef _STLP_NO_LONG_DOUBLE

    41 _STLP_OPERATOR_SPEC

    42 basic_ostream<char, char_traits<char> >& _STLP_CALL

    43 operator<< (basic_ostream<char, char_traits<char> >& __os, const complex<long double>& __z)

    44 { return __os << '(' << __z.real() << ',' << __z.imag() << ')'; }

    45 #  endif

    46 

    47 // Specialization for narrow characters; lets us avoid widen.

    48 _STLP_OPERATOR_SPEC

    49 basic_istream<char, char_traits<char> >& _STLP_CALL

    50 operator>>(basic_istream<char, char_traits<char> >& __is, complex<float>& __z) {

    51   float  __re = 0;

    52   float  __im = 0;

    53 

    54   char __c;

    55 

    56   __is >> __c;

    57   if (__c == '(') {

    58     __is >> __re >> __c;

    59     if (__c == ',')

    60       __is >> __im >> __c;

    61     if (__c != ')')

    62       __is.setstate(ios_base::failbit);

    63   }

    64   else {

    65     __is.putback(__c);

    66     __is >> __re;

    67   }

    68 

    69   if (__is)

    70     __z = complex<float>(__re, __im);

    71   return __is;

    72 }

    73 

    74 _STLP_OPERATOR_SPEC

    75 basic_istream<char, char_traits<char> >& _STLP_CALL

    76 operator>>(basic_istream<char, char_traits<char> >& __is, complex<double>& __z) {

    77   double  __re = 0;

    78   double  __im = 0;

    79 

    80   char __c;

    81 

    82   __is >> __c;

    83   if (__c == '(') {

    84     __is >> __re >> __c;

    85     if (__c == ',')

    86       __is >> __im >> __c;

    87     if (__c != ')')

    88       __is.setstate(ios_base::failbit);

    89   }

    90   else {

    91     __is.putback(__c);

    92     __is >> __re;

    93   }

    94 

    95   if (__is)

    96     __z = complex<double>(__re, __im);

    97   return __is;

    98 }

    99 

   100 #  ifndef _STLP_NO_LONG_DOUBLE

   101 _STLP_OPERATOR_SPEC

   102 basic_istream<char, char_traits<char> >& _STLP_CALL

   103 operator>>(basic_istream<char, char_traits<char> >& __is, complex<long double>& __z) {

   104   long double  __re = 0;

   105   long double  __im = 0;

   106 

   107   char __c;

   108 

   109   __is >> __c;

   110   if (__c == '(') {

   111     __is >> __re >> __c;

   112     if (__c == ',')

   113       __is >> __im >> __c;

   114     if (__c != ')')

   115       __is.setstate(ios_base::failbit);

   116   }

   117   else {

   118     __is.putback(__c);

   119     __is >> __re;

   120   }

   121 

   122   if (__is)

   123     __z = complex<long double>(__re, __im);

   124   return __is;

   125 }

   126 #  endif

   127 

   128 #endif /* MSVC */

   129 

   130 // Force instantiation of complex I/O functions

   131 #if !(defined (_STLP_NO_FORCE_INSTANTIATE) || defined (_STLP_NO_WCHAR_T))

   132 

   133 _STLP_OPERATOR_SPEC basic_istream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   134 operator>>(basic_istream<wchar_t, char_traits<wchar_t> >&, complex<float>&);

   135 

   136 _STLP_OPERATOR_SPEC basic_istream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   137 operator>>(basic_istream<wchar_t, char_traits<wchar_t> >&, complex<double>&);

   138 

   139 #ifndef _STLP_NO_LONG_DOUBLE

   140 _STLP_OPERATOR_SPEC basic_istream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   141 operator>>(basic_istream<wchar_t, char_traits<wchar_t> >&, complex<long double>&);

   142 

   143 _STLP_OPERATOR_SPEC basic_ostream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   144 operator<<(basic_ostream<wchar_t, char_traits<wchar_t> >&, const complex<long double>&);

   145 #endif

   146 

   147 _STLP_OPERATOR_SPEC basic_ostream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   148 operator<<(basic_ostream<wchar_t, char_traits<wchar_t> >&, const complex<float>&);

   149 

   150 _STLP_OPERATOR_SPEC basic_ostream<wchar_t, char_traits<wchar_t> >&  _STLP_CALL

   151 operator<<(basic_ostream<wchar_t, char_traits<wchar_t> >&, const complex<double>&);

   152 

   153 #endif /* _STLP_NO_WCHAR_T */

   154 

   155 _STLP_END_NAMESPACE

   156 

   157 

   158 // Local Variables:

   159 // mode:C++

   160 // End:

   161
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