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
|
# include "PackedArray.h"
PackedArray::PackedArray() {
charArray=NULL;
arrayAllocated=false;
};
void PackedArray::defineBits(uint Nbits, uint lengthIn){
wordLength=Nbits;
wordCompLength=sizeof(uint)*8LLU-wordLength;
bitRecMask=(~0LLU)>>wordCompLength;
length=lengthIn;
lengthByte=(length-1)*wordLength/8LLU+sizeof(uint);
// lengthByte=((lengthByte+sizeof(uint)-1LLU)/sizeof(uint))*sizeof(uint);
};
void PackedArray::writePacked( uint jj, uint x) {
uint b=jj*wordLength;
uint B=b/8LLU;
uint S=b%8LLU;
x = x << S;
uint* a1 = (uint*) (charArray+B);
*a1 = ( (*a1) & ~(bitRecMask<<S) ) | x;
};
void PackedArray::pointArray(char* pointerCharIn) {
charArray=pointerCharIn;
};
void PackedArray::allocateArray() {
charArray=new char[lengthByte];
memset(charArray+lengthByte-sizeof(uint),0,sizeof(uint));//set the last 8 bytes to zero, since some of them may lnever be written
arrayAllocated=true;
};
void PackedArray::deallocateArray() {
if (arrayAllocated) {
delete[] charArray;
arrayAllocated=false;
};
charArray=NULL;
};
|
