Panda3D
reversedNumericData.I
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file reversedNumericData.I
10  * @author drose
11  * @date 2001-05-09
12  */
13 
14 /**
15  * This constructor accepts the address of a numeric variable, and its sizeof.
16  */
18 ReversedNumericData(const void *data, size_t length) {
19  reverse_assign((const char *)data, length);
20 }
21 
22 /**
23  * This constructor accepts a pointer to a data array containing a packed
24  * numeric value, the offset within the array at which the numeric value
25  * starts, and the size of the numeric value.
26  *
27  * It is essential that the array not be destructed or modified as long as the
28  * NumericData object remains; it may just store a pointer into that string's
29  * internal buffer.
30  */
32 ReversedNumericData(const void *data, size_t start, size_t length) {
33  reverse_assign((const char *)data + start, length);
34 }
35 
36 /**
37  * Copies the data, with byte reversal if appropriate, into the indicated
38  * numeric variable, whose address and sizeof are given.
39  */
40 INLINE void ReversedNumericData::
41 store_value(void *dest, size_t length) const {
42  memcpy(dest, _data, length);
43 }
44 
45 /**
46  * Returns the pointer to the first byte of the data, either reversed or
47  * nonreversed, as appropriate.
48  */
49 INLINE const void *ReversedNumericData::
50 get_data() const {
51  return _data;
52 }
ReversedNumericData(const void *data, size_t length)
This constructor accepts the address of a numeric variable, and its sizeof.
const void * get_data() const
Returns the pointer to the first byte of the data, either reversed or nonreversed,...
void store_value(void *dest, size_t length) const
Copies the data, with byte reversal if appropriate, into the indicated numeric variable,...