File: QuickBitVector.html

package info (click to toggle)
libcolt-free-java 1.2.0%2Bdfsg-8
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 20,832 kB
  • sloc: java: 30,337; xml: 893; makefile: 26; sh: 3
file content (494 lines) | stat: -rw-r--r-- 21,809 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.4.2_05) on Thu Sep 09 20:36:07 PDT 2004 -->
<TITLE>
QuickBitVector (Colt 1.2.0 - API Specification)
</TITLE>

<META NAME="keywords" CONTENT="cern.colt.bitvector.QuickBitVector class">

<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

<SCRIPT type="text/javascript">
function windowTitle()
{
    parent.document.title="QuickBitVector (Colt 1.2.0 - API Specification)";
}
</SCRIPT>

</HEAD>

<BODY BGCOLOR="white" onload="windowTitle();">


<!-- ========= START OF TOP NAVBAR ======= -->
<A NAME="navbar_top"><!-- --></A>
<A HREF="#skip-navbar_top" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_top_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
  <TR ALIGN="center" VALIGN="top">
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/QuickBitVector.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
<b>Colt 1.2.0</b></EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;<A HREF="../../../cern/colt/bitvector/BitVector.html" title="class in cern.colt.bitvector"><B>PREV CLASS</B></A>&nbsp;
&nbsp;NEXT CLASS</FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="QuickBitVector.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
&nbsp;<SCRIPT type="text/javascript">
  <!--
  if(window==top) {
    document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
  }
  //-->
</SCRIPT>
<NOSCRIPT>
  <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>

</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL:&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_top"></A>
<!-- ========= END OF TOP NAVBAR ========= -->

<HR>
<!-- ======== START OF CLASS DATA ======== -->
<H2>
<FONT SIZE="-1">
cern.colt.bitvector</FONT>
<BR>
Class QuickBitVector</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
  <IMG SRC="../../../resources/inherit.gif" ALT="extended by"><B>cern.colt.bitvector.QuickBitVector</B>
</PRE>
<HR>
<DL>
<DT>public class <B>QuickBitVector</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL>

<P>
Implements quick non polymorphic non bounds checking low level bitvector operations.
 Includes some operations that interpret sub-bitstrings as long integers.
 <p>
 <b>WARNING: Methods of this class do not check preconditions.</b>
 Provided with invalid parameters these method may return (or set) invalid values without throwing any exception.
 <b>You should only use this class when performance is critical and you are absolutely sure that indexes are within bounds.</b>
 <p>	 
 A bitvector is modelled as a long array, i.e. <tt>long[] bits</tt> holds bits of a bitvector.
 Each long value holds 64 bits.
 The i-th bit is stored in bits[i/64] at
 bit position i % 64 (where bit position 0 refers to the least
 significant bit and 63 refers to the most significant bit).
<P>

<P>
<DL>
<DT><B>Version:</B></DT>
  <DD>1.0, 09/24/99</DD>
<DT><B>See Also:</B><DD><A HREF="../../../cern/colt/bitvector/BitVector.html" title="class in cern.colt.bitvector"><CODE>BitVector</CODE></A>, 
<A HREF="../../../cern/colt/bitvector/BitMatrix.html" title="class in cern.colt.bitvector"><CODE>BitMatrix</CODE></A>, 
<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/BitSet.html" title="class or interface in java.util"><CODE>BitSet</CODE></A></DL>
<HR>

<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->


<!-- =========== FIELD SUMMARY =========== -->


<!-- ======== CONSTRUCTOR SUMMARY ======== -->


<!-- ========== METHOD SUMMARY =========== -->

<A NAME="method_summary"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=2><FONT SIZE="+2">
<B>Method Summary</B></FONT></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#bitMaskWithBitsSetFromTo(int, int)">bitMaskWithBitsSetFromTo</A></B>(int&nbsp;from,
                         int&nbsp;to)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a bit mask with bits in the specified range set to 1, all the rest set to 0.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#clear(long[], int)">clear</A></B>(long[]&nbsp;bits,
      int&nbsp;bitIndex)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the "clear" (<tt>false</tt>) state.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#get(long[], int)">get</A></B>(long[]&nbsp;bits,
    int&nbsp;bitIndex)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns from the bitvector the value of the bit with the specified index.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;long</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#getLongFromTo(long[], int, int)">getLongFromTo</A></B>(long[]&nbsp;bits,
              int&nbsp;from,
              int&nbsp;to)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns a long value representing bits of a bitvector from index <tt>from</tt> to index <tt>to</tt>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#leastSignificantBit(int)">leastSignificantBit</A></B>(int&nbsp;value)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the index of the least significant bit in state "true".</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;long[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#makeBitVector(int, int)">makeBitVector</A></B>(int&nbsp;size,
              int&nbsp;bitsPerElement)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Constructs a low level bitvector that holds <tt>size</tt> elements, with each element taking <tt>bitsPerElement</tt> bits.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#mostSignificantBit(int)">mostSignificantBit</A></B>(int&nbsp;value)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the index of the most significant bit in state "true".</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#put(long[], int, boolean)">put</A></B>(long[]&nbsp;bits,
    int&nbsp;bitIndex,
    boolean&nbsp;value)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the state specified by <tt>value</tt>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#putLongFromTo(long[], long, int, int)">putLongFromTo</A></B>(long[]&nbsp;bits,
              long&nbsp;value,
              int&nbsp;from,
              int&nbsp;to)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets bits of a bitvector from index <code>from</code> to index <code>to</code> to the bits of <code>value</code>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../cern/colt/bitvector/QuickBitVector.html#set(long[], int)">set</A></B>(long[]&nbsp;bits,
    int&nbsp;bitIndex)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the "set" (<tt>true</tt>) state.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->


<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="bitMaskWithBitsSetFromTo(int, int)"><!-- --></A><H3>
bitMaskWithBitsSetFromTo</H3>
<PRE>
public static final long <B>bitMaskWithBitsSetFromTo</B>(int&nbsp;from,
                                                  int&nbsp;to)</PRE>
<DL>
<DD>Returns a bit mask with bits in the specified range set to 1, all the rest set to 0.
 In other words, returns a bit mask having 0,1,2,3,...,64 bits set.
 If <tt>to-from+1==0</tt> then returns zero (<tt>0L</tt>).
 Precondition (not checked): <tt>to-from+1 &gt;= 0 && to-from+1 &lt;= 64</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>from</CODE> - index of start bit (inclusive)<DD><CODE>to</CODE> - index of end bit (inclusive).
<DT><B>Returns:</B><DD>the bit mask having all bits between <tt>from</tt> and <tt>to</tt> set to 1.</DL>
</DD>
</DL>
<HR>

<A NAME="clear(long[], int)"><!-- --></A><H3>
clear</H3>
<PRE>
public static void <B>clear</B>(long[]&nbsp;bits,
                         int&nbsp;bitIndex)</PRE>
<DL>
<DD>Changes the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the "clear" (<tt>false</tt>) state.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>bitIndex</CODE> - the index of the bit to be cleared.</DL>
</DD>
</DL>
<HR>

<A NAME="get(long[], int)"><!-- --></A><H3>
get</H3>
<PRE>
public static boolean <B>get</B>(long[]&nbsp;bits,
                          int&nbsp;bitIndex)</PRE>
<DL>
<DD>Returns from the bitvector the value of the bit with the specified index.
 The value is <tt>true</tt> if the bit with the index <tt>bitIndex</tt> 
 is currently set; otherwise, returns <tt>false</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>bitIndex</CODE> - the bit index.
<DT><B>Returns:</B><DD>the value of the bit with the specified index.</DL>
</DD>
</DL>
<HR>

<A NAME="getLongFromTo(long[], int, int)"><!-- --></A><H3>
getLongFromTo</H3>
<PRE>
public static long <B>getLongFromTo</B>(long[]&nbsp;bits,
                                 int&nbsp;from,
                                 int&nbsp;to)</PRE>
<DL>
<DD>Returns a long value representing bits of a bitvector from index <tt>from</tt> to index <tt>to</tt>.
 Bits are returned as a long value with the return value having bit 0 set to bit <code>from</code>, ..., bit <code>to-from</code> set to bit <code>to</code>.
 All other bits of return value are set to 0.
 If <tt>from &gt; to</tt> then returns zero (<tt>0L</tt>).
 Precondition (not checked): <tt>to-from+1 &lt;= 64</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>from</CODE> - index of start bit (inclusive).<DD><CODE>to</CODE> - index of end bit (inclusive).
<DT><B>Returns:</B><DD>the specified bits as long value.</DL>
</DD>
</DL>
<HR>

<A NAME="leastSignificantBit(int)"><!-- --></A><H3>
leastSignificantBit</H3>
<PRE>
public static int <B>leastSignificantBit</B>(int&nbsp;value)</PRE>
<DL>
<DD>Returns the index of the least significant bit in state "true".
Returns 32 if no bit is in state "true".
Examples: 
<pre>
0x80000000 --> 31
0x7fffffff --> 0
0x00000001 --> 0
0x00000000 --> 32
</pre>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="makeBitVector(int, int)"><!-- --></A><H3>
makeBitVector</H3>
<PRE>
public static long[] <B>makeBitVector</B>(int&nbsp;size,
                                   int&nbsp;bitsPerElement)</PRE>
<DL>
<DD>Constructs a low level bitvector that holds <tt>size</tt> elements, with each element taking <tt>bitsPerElement</tt> bits.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>size</CODE> - the number of elements to be stored in the bitvector (must be &gt;= 0).<DD><CODE>bitsPerElement</CODE> - the number of bits one single element takes.
<DT><B>Returns:</B><DD>a low level bitvector.</DL>
</DD>
</DL>
<HR>

<A NAME="mostSignificantBit(int)"><!-- --></A><H3>
mostSignificantBit</H3>
<PRE>
public static int <B>mostSignificantBit</B>(int&nbsp;value)</PRE>
<DL>
<DD>Returns the index of the most significant bit in state "true".
Returns -1 if no bit is in state "true".
Examples: 
<pre>
0x80000000 --> 31
0x7fffffff --> 30
0x00000001 --> 0
0x00000000 --> -1
</pre>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="put(long[], int, boolean)"><!-- --></A><H3>
put</H3>
<PRE>
public static void <B>put</B>(long[]&nbsp;bits,
                       int&nbsp;bitIndex,
                       boolean&nbsp;value)</PRE>
<DL>
<DD>Sets the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the state specified by <tt>value</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>bitIndex</CODE> - the index of the bit to be changed.<DD><CODE>value</CODE> - the value to be stored in the bit.</DL>
</DD>
</DL>
<HR>

<A NAME="putLongFromTo(long[], long, int, int)"><!-- --></A><H3>
putLongFromTo</H3>
<PRE>
public static void <B>putLongFromTo</B>(long[]&nbsp;bits,
                                 long&nbsp;value,
                                 int&nbsp;from,
                                 int&nbsp;to)</PRE>
<DL>
<DD>Sets bits of a bitvector from index <code>from</code> to index <code>to</code> to the bits of <code>value</code>.
 Bit <code>from</code> is set to bit 0 of <code>value</code>, ..., bit <code>to</code> is set to bit <code>to-from</code> of <code>value</code>.
 All other bits stay unaffected.
 If <tt>from &gt; to</tt> then does nothing.
 Precondition (not checked): <tt>to-from+1 &lt;= 64</tt>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>value</CODE> - the value to be copied into the bitvector.<DD><CODE>from</CODE> - index of start bit (inclusive).<DD><CODE>to</CODE> - index of end bit (inclusive).</DL>
</DD>
</DL>
<HR>

<A NAME="set(long[], int)"><!-- --></A><H3>
set</H3>
<PRE>
public static void <B>set</B>(long[]&nbsp;bits,
                       int&nbsp;bitIndex)</PRE>
<DL>
<DD>Changes the bit with index <tt>bitIndex</tt> in the bitvector <tt>bits</tt> to the "set" (<tt>true</tt>) state.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bits</CODE> - the bitvector.<DD><CODE>bitIndex</CODE> - the index of the bit to be set.</DL>
</DD>
</DL>
<!-- ========= END OF CLASS DATA ========= -->
<HR>


<!-- ======= START OF BOTTOM NAVBAR ====== -->
<A NAME="navbar_bottom"><!-- --></A>
<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
<TR>
<TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
<A NAME="navbar_bottom_firstrow"><!-- --></A>
<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
  <TR ALIGN="center" VALIGN="top">
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/QuickBitVector.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
  </TR>
</TABLE>
</TD>
<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
<b>Colt 1.2.0</b></EM>
</TD>
</TR>

<TR>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
&nbsp;<A HREF="../../../cern/colt/bitvector/BitVector.html" title="class in cern.colt.bitvector"><B>PREV CLASS</B></A>&nbsp;
&nbsp;NEXT CLASS</FONT></TD>
<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
  <A HREF="../../../index.html" target="_top"><B>FRAMES</B></A>  &nbsp;
&nbsp;<A HREF="QuickBitVector.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
&nbsp;<SCRIPT type="text/javascript">
  <!--
  if(window==top) {
    document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>');
  }
  //-->
</SCRIPT>
<NOSCRIPT>
  <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>
</NOSCRIPT>

</FONT></TD>
</TR>
<TR>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
DETAIL:&nbsp;FIELD&nbsp;|&nbsp;CONSTR&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
</TR>
</TABLE>
<A NAME="skip-navbar_bottom"></A>
<!-- ======== END OF BOTTOM NAVBAR ======= -->

<HR>
<font size=-1 >Jump to the <a target=_top href=http://dsd.lbl.gov/~hoschek/colt >Colt Homepage</a>
</BODY>
</HTML>