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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 | %% Licence: wxWindows licence | |
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 | substraction, 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. | |
28 | ||
29 | If a native (i.e. supported directly by the compiler) 64 bit integer type was | |
30 | found a typedef {\it wxLongLong\_t} will be defined to correspond it. | |
31 | ||
32 | \wxheading{Derived from} | |
33 | ||
34 | No base class | |
35 | ||
36 | \wxheading{Include files} | |
37 | ||
38 | <wx/longlong.h> | |
39 | ||
40 | \latexignore{\rtfignore{\wxheading{Members}}} | |
41 | ||
42 | \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongdef} | |
43 | ||
44 | \func{}{wxLongLong}{\void} | |
45 | ||
46 | Default constructor initializes the object to 0. | |
47 | ||
48 | \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglongll} | |
49 | ||
50 | \func{}{wxLongLong}{\param{wxLongLong\_t }{ll}} | |
51 | ||
52 | Constructor from native long long (only for compilers supporting it). | |
53 | ||
54 | \membersection{wxLongLong::wxLongLong}\label{wxlonglongwxlonglong} | |
55 | ||
56 | \func{}{wxLongLong}{\param{long }{hi}, \param{unsigned long }{lo}} | |
57 | ||
58 | Constructor from 2 longs: the high and low part are combined into one | |
59 | wxLongLong. | |
60 | ||
61 | \membersection{wxLongLong::operator=}\label{wxlonglongoperatorassign} | |
62 | ||
63 | \func{wxLongLong\& operator}{operator=}{\param{wxLongLong\_t }{ll}} | |
64 | ||
65 | Assignment operator from native long long (only for compilers supporting it). | |
66 | ||
67 | \membersection{wxLongLong::Abs}\label{wxlonglongabs} | |
68 | ||
69 | \constfunc{wxLongLong}{Abs}{\void} | |
70 | ||
71 | \func{wxLongLong\&}{Abs}{\void} | |
72 | ||
73 | Returns an absolute value of wxLongLong - either making a copy (const version) | |
74 | or modifying it in place (the second one). | |
75 | ||
76 | \membersection{wxLongLong::Assign}\label{wxlonglongassign} | |
77 | ||
78 | \func{wxLongLong\&}{Assign}{\param{double }{d}} | |
79 | ||
80 | This allows to convert a double value to wxLongLong type. Such conversion is | |
81 | not always possible in which case the result will be silently truncated in a | |
82 | platform-dependent way. | |
83 | ||
84 | \membersection{wxLongLong::GetHi}\label{wxlonglonggethi} | |
85 | ||
86 | \constfunc{long}{GetHi}{\void} | |
87 | ||
88 | Returnes the high 32 bits of 64 bit integer. | |
89 | ||
90 | \membersection{wxLongLong::GetLo}\label{wxlonglonggetlo} | |
91 | ||
92 | \constfunc{unsigned long}{GetLo}{\void} | |
93 | ||
94 | Returnes the low 32 bits of 64 bit integer. | |
95 | ||
96 | \membersection{wxLongLong::GetValue}\label{wxlonglonggetvalue} | |
97 | ||
98 | \constfunc{wxLongLong\_t}{GetValue}{\void} | |
99 | ||
100 | Convert to native long long (only for compilers supporting it) | |
101 | ||
102 | \membersection{wxLongLong::ToLong}\label{wxlonglongtolong} | |
103 | ||
104 | \constfunc{long}{ToLong}{\void} | |
105 | ||
106 | Truncate wxLongLong to long. If the conversion loses data (i.e. the wxLongLong | |
107 | value is outside the range of built-in long type), an assert will be triggered | |
108 | in debug mode. | |
109 | ||
110 | \membersection{wxLongLong::operator$+$}\label{wxlonglongoperatorplus} | |
111 | ||
112 | \constfunc{wxLongLong}{operator$+$}{\param{const wxLongLong\& }{ll}} | |
113 | ||
114 | Adds 2 wxLongLongs together and returns the result. | |
115 | ||
116 | \membersection{wxLongLong::operator$+=$}\label{wxlonglongoperatorplusassign} | |
117 | ||
118 | \func{wxLongLong\&}{operator+}{\param{const wxLongLong\& }{ll}} | |
119 | ||
120 | Add another wxLongLong to this one. | |
121 | ||
122 | \membersection{wxLongLong::operator$++$}\label{wxlonglongoperatorinc} | |
123 | ||
124 | \func{wxLongLong\&}{operator$++$}{\void} | |
125 | ||
126 | \func{wxLongLong\&}{operator$++$}{\param{int}{}} | |
127 | ||
128 | Pre/post increment operator. | |
129 | ||
130 | \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorunaryminus} | |
131 | ||
132 | \constfunc{wxLongLong}{operator$-$}{\void} | |
133 | ||
134 | Returns the value of this wxLongLong with opposite sign. | |
135 | ||
136 | \membersection{wxLongLong::operator$-$}\label{wxlonglongoperatorminus} | |
137 | ||
138 | \constfunc{wxLongLong}{operator$-$}{\param{const wxLongLong\& }{ll}} | |
139 | ||
140 | Substracts 2 wxLongLongs and returns the result. | |
141 | ||
142 | \membersection{wxLongLong::operator$-=$}\label{wxlonglongoperatorminusassign} | |
143 | ||
144 | \func{wxLongLong\&}{operator-}{\param{const wxLongLong\& }{ll}} | |
145 | ||
146 | Substracts another wxLongLong from this one. | |
147 | ||
148 | \membersection{wxLongLong::operator$--$}\label{wxlonglongoperatordec} | |
149 | ||
150 | \func{wxLongLong\&}{operator$--$}{\void} | |
151 | ||
152 | \func{wxLongLong\&}{operator$--$}{\param{int}{}} | |
153 | ||
154 | Pre/post decrement operator. | |
155 | ||
156 | % TODO document all other arithmetics operations: shifts, multiplication, | |
157 | % division, bitwise, comparison | |
158 |