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// 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: virtualalloc.c
**
** Purpose: Positive test the VirtualAlloc API.
** Ensure that memory committed through VirtualAlloc,
** then freed, then committed again is zeroed.
**
**
**============================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char *argv[])
{
int err;
int *ptr;
//Initialize the PAL environment
err = PAL_Initialize(argc, argv);
if(0 != err)
{
ExitProcess(FAIL);
}
ptr = (int *) VirtualAlloc(NULL, 4096, MEM_COMMIT | MEM_RESERVE,
PAGE_READWRITE);
if (ptr == NULL)
{
Fail("First VirtualAlloc failed!\n");
}
*ptr = 123;
if (!VirtualFree(ptr, 4096, MEM_DECOMMIT))
{
Fail("VirtualFree failed!\n");
}
ptr = (int *) VirtualAlloc(ptr, 4096, MEM_COMMIT, PAGE_READWRITE);
if (ptr == NULL)
{
Fail("Second VirtualAlloc failed!\n");
}
if (*ptr != 0)
{
Fail("VirtualAlloc failed to zero its memory!\n");
}
PAL_Terminate();
return PASS;
}
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