|
8 | 8 | * |
9 | 9 | * |
10 | 10 | * IDENTIFICATION |
11 | | - * $Header: /cvsroot/pgsql/src/backend/lib/Attic/bit.c,v 1.9 2000/01/26 05:56:26 momjian Exp $ |
| 11 | + * $Header: /cvsroot/pgsql/src/backend/lib/Attic/bit.c,v 1.10 2000/08/20 19:31:37 tgl Exp $ |
12 | 12 | * |
13 | 13 | *------------------------------------------------------------------------- |
14 | 14 | */ |
15 | 15 |
|
16 | | -/* |
17 | | - * utils/memutils.h contains declarations of the functions in this file |
18 | | - */ |
19 | 16 | #include"postgres.h" |
20 | 17 |
|
21 | 18 | #include"utils/bit.h" |
22 | 19 |
|
| 20 | + |
23 | 21 | void |
24 | 22 | BitArraySetBit(BitArraybitArray,BitIndexbitIndex) |
25 | 23 | { |
26 | | -bitArray[bitIndex /BitsPerByte] |
27 | | -|= (1 << (BitsPerByte- (bitIndex %BitsPerByte)-1)); |
28 | | -return; |
| 24 | +bitArray[bitIndex /BITSPERBYTE] |= |
| 25 | +(1 << (BITSPERBYTE-1- (bitIndex %BITSPERBYTE))); |
29 | 26 | } |
30 | 27 |
|
31 | 28 | void |
32 | 29 | BitArrayClearBit(BitArraybitArray,BitIndexbitIndex) |
33 | 30 | { |
34 | | -bitArray[bitIndex /BitsPerByte] |
35 | | -&= ~(1 << (BitsPerByte- (bitIndex %BitsPerByte)-1)); |
36 | | -return; |
| 31 | +bitArray[bitIndex /BITSPERBYTE] &= |
| 32 | +~(1 << (BITSPERBYTE-1- (bitIndex %BITSPERBYTE))); |
37 | 33 | } |
38 | 34 |
|
39 | 35 | bool |
40 | 36 | BitArrayBitIsSet(BitArraybitArray,BitIndexbitIndex) |
41 | 37 | { |
42 | | -return ((bool) (((bitArray[bitIndex /BitsPerByte]& |
43 | | - (1 << (BitsPerByte- (bitIndex %BitsPerByte) |
44 | | --1) |
45 | | - ) |
46 | | - )!=0) ?1 :0)); |
| 38 | +return ((bitArray[bitIndex /BITSPERBYTE]& |
| 39 | + (1 << (BITSPERBYTE-1- (bitIndex %BITSPERBYTE))) |
| 40 | +)!=0); |
47 | 41 | } |