docs/latex/wx/longlong.tex

   1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2 %% Name:        longlong.tex
   3 %% Purpose:     wxLongLong documentation
   4 %% Author:      Vadim Zeitlin
   5 %% Modified by:
   6 %% Created:     07.03.00
   7 %% RCS-ID:      $Id$
   8 %% Copyright:   (c) Vadim Zeitlin
   9 %% License:     wxWidgets license
  10 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  11
  12 \section{\class{wxLongLong}}\label{wxlonglong}
  13
  14 This class represents a signed 64 bit long number. It is implemented using the
  15 native 64 bit type where available (machines with 64 bit longs or compilers
  16 which have (an analog of) {\it long long} type) and uses the emulation code in
  17 the other cases which ensures that it is the most efficient solution for
  18 working with 64 bit integers independently of the architecture.
  19
  20 wxLongLong defines all usual arithmetic operations such as addition,
  21 subtraction, bitwise shifts and logical operations as well as multiplication
  22 and division (not yet for the machines without native {\it long long}). It
  23 also has operators for implicit construction from and conversion to the native
  24 {\it long long} type if it exists and {\it long}.
  25
  26 You would usually use this type in exactly the same manner as any other
  27 (built-in) arithmetic type. Note that wxLongLong is a signed type, if you
  28 want unsigned values use wxULongLong which has exactly the same API as
  29 wxLongLong except when explicitly mentioned otherwise.
  30
  31 If a native (i.e. supported directly by the compiler) 64 bit integer type was
  32 found to exist, {\it wxLongLong\_t} macro will be defined to correspond to it.
  33 Also, in this case only, two additional macros will be defined:
  34 \helpref{wxLongLongFmtSpec}{wxlonglongfmtspec} for printing 64 bit integers
  35 using the standard {\tt printf()} function (but see also
  36 \helpref{ToString()}{wxlonglongtostring} for a more portable solution) and
  37 \helpref{wxLL}{wxll} for defining 64 bit integer compile-time constants.
  38
  39 \wxheading{Derived from}
  40
  41 No base class
  42
  43 \wxheading{Include files}
  44
  45 <wx/longlong.h>
  46
  47 \latexignore{\rtfignore{\wxheading{Members}}}
  48
  49 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongdef}
  50
  51 \func{}{wxLongLong}{\void}
  52
  53 Default constructor initializes the object to 0.
  54
  55 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongll}
  56
  57 \func{}{wxLongLong}{\param{wxLongLong\_t }{ll}}
  58
  59 Constructor from native long long (only for compilers supporting it).
  60
  61 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglong}
  62
  63 \func{}{wxLongLong}{\param{long }{hi}, \param{unsigned long }{lo}}
  64
  65 Constructor from 2 longs: the high and low part are combined into one
  66 wxLongLong.
  67
  68 \membersection{wxLongLong::operator=}\label{wxlonglongoperatorassign}
  69
  70 \func{wxLongLong\& operator}{operator=}{\param{wxLongLong\_t }{ll}}
  71
  72 Assignment operator from native long long (only for compilers supporting it).
  73
  74 \membersection{wxLongLong::Abs}\label{wxlonglongabs}
  75
  76 \constfunc{wxLongLong}{Abs}{\void}
  77
  78 \func{wxLongLong\&}{Abs}{\void}
  79
  80 Returns an absolute value of wxLongLong - either making a copy (const version)
  81 or modifying it in place (the second one).  Not in wxULongLong.
  82
  83 \membersection{wxLongLong::Assign}\label{wxlonglongassign}
  84
  85 \func{wxLongLong\&}{Assign}{\param{double }{d}}
  86
  87 This allows to convert a double value to wxLongLong type. Such conversion is
  88 not always possible in which case the result will be silently truncated in a
  89 platform-dependent way.  Not in wxULongLong.
  90
  91 \membersection{wxLongLong::GetHi}\label{wxlonglonggethi}
  92
  93 \constfunc{long}{GetHi}{\void}
  94
  95 Returns the high 32 bits of 64 bit integer.
  96
  97 \membersection{wxLongLong::GetLo}\label{wxlonglonggetlo}
  98
  99 \constfunc{unsigned long}{GetLo}{\void}
 100
 101 Returns the low 32 bits of 64 bit integer.
 102
 103 \membersection{wxLongLong::GetValue}\label{wxlonglonggetvalue}
 104
 105 \constfunc{wxLongLong\_t}{GetValue}{\void}
 106
 107 Convert to native long long (only for compilers supporting it)
 108
 109 \membersection{wxLongLong::ToLong}\label{wxlonglongtolong}
 110
 111 \constfunc{long}{ToLong}{\void}
 112
 113 Truncate wxLongLong to long. If the conversion loses data (i.e. the wxLongLong
 114 value is outside the range of built-in long type), an assert will be triggered
 115 in debug mode.
 116
 117 \membersection{wxLongLong::ToString}\label{wxlonglongtostring}
 118
 119 \constfunc{wxString}{ToString}{\void}
 120
 121 Returns the string representation of a wxLongLong.
 122
 123 \membersection{wxLongLong::operator$+$}\label{wxlonglongoperatorplus}
 124
 125 \constfunc{wxLongLong}{operator$+$}{\param{const wxLongLong\& }{ll}}
 126
 127 Adds 2 wxLongLongs together and returns the result.
 128
 129 \membersection{wxLongLong::operator$+=$}\label{wxlonglongoperatorplusassign}
 130
 131 \func{wxLongLong\&}{operator+}{\param{const wxLongLong\& }{ll}}
 132
 133 Add another wxLongLong to this one.
 134
 135 \membersection{wxLongLong::operator$++$}\label{wxlonglongoperatorinc}
 136
 137 \func{wxLongLong\&}{operator$++$}{\void}
 138
 139 \func{wxLongLong\&}{operator$++$}{\param{int}{}}
 140
 141 Pre/post increment operator.
 142
 143 \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorunaryminus}
 144
 145 \constfunc{wxLongLong}{operator$-$}{\void}
 146
 147 Returns the value of this wxLongLong with opposite sign.  Not in wxULongLong.
 148
 149 \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorminus}
 150
 151 \constfunc{wxLongLong}{operator$-$}{\param{const wxLongLong\& }{ll}}
 152
 153 Subtracts 2 wxLongLongs and returns the result.
 154
 155 \membersection{wxLongLong::operator$-=$}\label{wxlonglongoperatorminusassign}
 156
 157 \func{wxLongLong\&}{operator-}{\param{const wxLongLong\& }{ll}}
 158
 159 Subtracts another wxLongLong from this one.
 160
 161 \membersection{wxLongLong::operator$--$}\label{wxlonglongoperatordec}
 162
 163 \func{wxLongLong\&}{operator$--$}{\void}
 164
 165 \func{wxLongLong\&}{operator$--$}{\param{int}{}}
 166
 167 Pre/post decrement operator.
 168
 169 % TODO document all other arithmetics operations: shifts, multiplication,
 170 % division, bitwise, comparison
 171