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:     wxWindows 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
  50 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongdef}
  51
  52 \func{}{wxLongLong}{\void}
  53
  54 Default constructor initializes the object to 0.
  55
  56
  57 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongll}
  58
  59 \func{}{wxLongLong}{\param{wxLongLong\_t }{ll}}
  60
  61 Constructor from native long long (only for compilers supporting it).
  62
  63
  64 \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglong}
  65
  66 \func{}{wxLongLong}{\param{long }{hi}, \param{unsigned long }{lo}}
  67
  68 Constructor from 2 longs: the high and low part are combined into one
  69 wxLongLong.
  70
  71
  72 \membersection{wxLongLong::operator=}\label{wxlonglongoperatorassign}
  73
  74 \func{wxLongLong\& operator}{operator=}{\param{wxLongLong\_t }{ll}}
  75
  76 Assignment operator from native long long (only for compilers supporting it).
  77
  78
  79 \membersection{wxLongLong::Abs}\label{wxlonglongabs}
  80
  81 \constfunc{wxLongLong}{Abs}{\void}
  82
  83 \func{wxLongLong\&}{Abs}{\void}
  84
  85 Returns an absolute value of wxLongLong - either making a copy (const version)
  86 or modifying it in place (the second one).  Not in wxULongLong.
  87
  88
  89 \membersection{wxLongLong::Assign}\label{wxlonglongassign}
  90
  91 \func{wxLongLong\&}{Assign}{\param{double }{d}}
  92
  93 This allows to convert a double value to wxLongLong type. Such conversion is
  94 not always possible in which case the result will be silently truncated in a
  95 platform-dependent way.  Not in wxULongLong.
  96
  97
  98 \membersection{wxLongLong::GetHi}\label{wxlonglonggethi}
  99
 100 \constfunc{long}{GetHi}{\void}
 101
 102 Returns the high 32 bits of 64 bit integer.
 103
 104
 105 \membersection{wxLongLong::GetLo}\label{wxlonglonggetlo}
 106
 107 \constfunc{unsigned long}{GetLo}{\void}
 108
 109 Returns the low 32 bits of 64 bit integer.
 110
 111
 112 \membersection{wxLongLong::GetValue}\label{wxlonglonggetvalue}
 113
 114 \constfunc{wxLongLong\_t}{GetValue}{\void}
 115
 116 Convert to native long long (only for compilers supporting it)
 117
 118
 119 \membersection{wxLongLong::ToDouble}\label{wxlonglonggetdouble}
 120
 121 \constfunc{double}{ToDouble}{\void}
 122
 123 Returns the value as \texttt{double}.
 124
 125
 126 \membersection{wxLongLong::ToLong}\label{wxlonglongtolong}
 127
 128 \constfunc{long}{ToLong}{\void}
 129
 130 Truncate wxLongLong to long. If the conversion loses data (i.e. the wxLongLong
 131 value is outside the range of built-in long type), an assert will be triggered
 132 in debug mode.
 133
 134
 135 \membersection{wxLongLong::ToString}\label{wxlonglongtostring}
 136
 137 \constfunc{wxString}{ToString}{\void}
 138
 139 Returns the string representation of a wxLongLong.
 140
 141
 142 \membersection{wxLongLong::operator$+$}\label{wxlonglongoperatorplus}
 143
 144 \constfunc{wxLongLong}{operator$+$}{\param{const wxLongLong\& }{ll}}
 145
 146 Adds 2 wxLongLongs together and returns the result.
 147
 148
 149 \membersection{wxLongLong::operator$+=$}\label{wxlonglongoperatorplusassign}
 150
 151 \func{wxLongLong\&}{operator+}{\param{const wxLongLong\& }{ll}}
 152
 153 Add another wxLongLong to this one.
 154
 155
 156 \membersection{wxLongLong::operator$++$}\label{wxlonglongoperatorinc}
 157
 158 \func{wxLongLong\&}{operator$++$}{\void}
 159
 160 \func{wxLongLong\&}{operator$++$}{\param{int}{}}
 161
 162 Pre/post increment operator.
 163
 164
 165 \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorunaryminus}
 166
 167 \constfunc{wxLongLong}{operator$-$}{\void}
 168
 169 Returns the value of this wxLongLong with opposite sign.  Not in wxULongLong.
 170
 171
 172 \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorminus}
 173
 174 \constfunc{wxLongLong}{operator$-$}{\param{const wxLongLong\& }{ll}}
 175
 176 Subtracts 2 wxLongLongs and returns the result.
 177
 178
 179 \membersection{wxLongLong::operator$-=$}\label{wxlonglongoperatorminusassign}
 180
 181 \func{wxLongLong\&}{operator-}{\param{const wxLongLong\& }{ll}}
 182
 183 Subtracts another wxLongLong from this one.
 184
 185
 186 \membersection{wxLongLong::operator$--$}\label{wxlonglongoperatordec}
 187
 188 \func{wxLongLong\&}{operator$--$}{\void}
 189
 190 \func{wxLongLong\&}{operator$--$}{\param{int}{}}
 191
 192 Pre/post decrement operator.
 193
 194 % TODO document all other arithmetics operations: shifts, multiplication,
 195 % division, bitwise, comparison
 196