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1
4 package gnu.lists;
5 import java.io.*;
6
7
8
9 public class F32Vector extends SimpleVector
10 implements Externalizable
11
12 , Comparable 
13
14 {
15 float[] data;
16 protected static float[] empty = new float[0];
17
18 public F32Vector ()
19 {
20 data = empty;
21 }
22
23 public F32Vector(int size, float value)
24 {
25 float[] array = new float[size];
26 data = array;
27 this.size = size;
28 while (--size >= 0)
29 array[size] = value;
30 }
31
32 public F32Vector(int size)
33 {
34 this.data = new float[size];
35 this.size = size;
36 }
37
38 public F32Vector (float[] data)
39 {
40 this.data = data;
41 size = data.length;
42 }
43
44 public F32Vector(Sequence seq)
45 {
46 data = new float[seq.size()];
47 addAll(seq);
48 }
49
50
51 public int getBufferLength()
52 {
53 return data.length;
54 }
55
56 public void setBufferLength(int length)
57 {
58 int oldLength = data.length;
59 if (oldLength != length)
60 {
61 float[] tmp = new float[length];
62 System.arraycopy(data, 0, tmp, 0,
63 oldLength < length ? oldLength : length);
64 data = tmp;
65 }
66 }
67
68 protected Object getBuffer() { return data; }
69
70 public final int intAtBuffer(int index)
71 {
72 return (int) data[index];
73 }
74
75 public final float floatAt(int index)
76 {
77 if (index >= size)
78 throw new ArrayIndexOutOfBoundsException ();
79 return data[index];
80 }
81
82 public final float floatAtBuffer(int index)
83 {
84 return data[index];
85 }
86
87 public final Object get (int index)
88 {
89 if (index > size)
90 throw new IndexOutOfBoundsException ();
91 return Convert.toObject(data[index]);
92 }
93
94 public final Object getBuffer (int index)
95 {
96 return Convert.toObject(data[index]);
97 }
98
99 public final void setFloatAt(int index, float value)
100 {
101 if (index > size)
102 throw new IndexOutOfBoundsException ();
103 data[index] = value;
104 }
105
106 public final void setFloatAtBuffer(int index, float value)
107 {
108 data[index] = value;
109 }
110
111 public final Object setBuffer(int index, Object value)
112 {
113 Object old = Convert.toObject(data[index]);
114 data[index] = Convert.toFloat(value);
115 return old;
116 }
117
118 protected void clearBuffer(int start, int count)
119 {
120 while (--count >= 0)
121 data[start++] = 0;
122 }
123
124 public int getElementKind()
125 {
126 return FLOAT_VALUE;
127 }
128
129 public String getTag() { return "f32"; }
130
131 public boolean consumeNext (int ipos, Consumer out)
132 {
133 int index = ipos >>> 1;
134 if (index >= size)
135 return false;
136 out.writeFloat(data[index]);
137 return true;
138 }
139
140 public void consumePosRange (int iposStart, int iposEnd, Consumer out)
141 {
142 if (out.ignoring())
143 return;
144 int i = iposStart >>> 1;
145 int end = iposEnd >>> 1;
146 for (; i < end; i++)
147 out.writeFloat(data[i]);
148 }
149
150 public int compareTo(Object obj)
151 {
152 F32Vector vec2 = (F32Vector) obj;
153 float[] arr1 = data;
154 float[] arr2 = vec2.data;
155 int n1 = size;
156 int n2 = vec2.size;
157 int n = n1 > n2 ? n2 : n1;
158 for (int i = 0; i < n; i++)
159 {
160 float v1 = arr1[i];
161 float v2 = arr2[i];
162 if (v1 != v2)
163 return v1 > v2 ? 1 : -1;
164 }
165 return n1 - n2;
166 }
167
168
172 public void writeExternal(ObjectOutput out) throws IOException
173 {
174 int size = this.size;
175 out.writeInt(size);
176 for (int i = 0; i < size; i++)
177 out.writeFloat(data[i]);
178 }
179
180 public void readExternal(ObjectInput in)
181 throws IOException, ClassNotFoundException
182 {
183 int size = in.readInt();
184 float[] data = new float[size];
185 for (int i = 0; i < size; i++)
186 data[i] = in.readFloat();
187 this.data = data;
188 this.size = size;
189 }
190 }
191 |
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