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
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=============================================================
**
** Source: test2.c
**
** Purpose: Allocate some memory. Then reallocate that memory into less
** space than the original amount. Ensure the
** return values are correct, and also that data placed in the allocated
** memory carries over to the reallocated block.
**
**
**============================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char *argv[])
{
HANDLE TheHeap;
char* TheMemory;
char* ReAllocMemory;
int i;
if(PAL_Initialize(argc, argv) != 0)
{
return FAIL;
}
TheHeap = GetProcessHeap();
if(TheHeap == NULL)
{
Fail("ERROR: GetProcessHeap() returned NULL when it was called. "
"GetLastError() returned %d.",GetLastError());
}
/* Allocate 200 bytes on the heap */
if((TheMemory = HeapAlloc(TheHeap, 0, 200)) == NULL)
{
Fail("ERROR: HeapAlloc returned NULL when it was called. "
"GetLastError() returned %d.",GetLastError());
}
/* Set the first 100 bytes to 'X' */
memset(TheMemory, 'X', 100);
/* Set the second 100 bytes to 'Z' */
memset(TheMemory+100, 'Z', 100);
/* Reallocate the memory to 100 bytes */
ReAllocMemory = HeapReAlloc(TheHeap, 0, TheMemory, 100);
if(ReAllocMemory == NULL)
{
Fail("ERROR: HeapReAlloc failed to reallocate the 100 bytes of "
"heap memory. GetLastError returns %d.",GetLastError());
}
/* Check that each of the first 100 bytes hasn't lost any data.
Anything beyond the first 100 might still be valid, but we can't
gaurentee it.
*/
for(i=0; i<100; ++i)
{
/* Note: Cast to char* so the function knows the size is 1 */
if(ReAllocMemory[i] != 'X')
{
Fail("ERROR: Byte number %d of the reallocated memory block "
"is not set to 'X' as it should be.",i);
}
}
PAL_Terminate();
return PASS;
}
|
