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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: test1.c
**
** Purpose: Tests to see that fflush is working properly. Flushes a couple
** buffers and checks the return value. Can't figure out a way to test
** and ensure it is really dropping the buffers, since the system
** does this automatically most of the time ...
**
**
**==========================================================================*/
/* This function is really tough to test. Right now it just tests
a bunch of return values. No solid way to ensure that it is really
flushing a buffer or not -- might have to be a manual test someday.
*/
#include <palsuite.h>
int __cdecl main(int argc, char **argv)
{
int TheReturn;
FILE* TheFile;
FILE* AnotherFile = NULL;
PAL_Initialize(argc,argv);
TheFile = fopen("theFile","w+");
if(TheFile == NULL)
{
Fail("ERROR: fopen failed. Test depends on this function.");
}
TheReturn = fwrite("foo",3,3,TheFile);
if(TheReturn != 3)
{
Fail("ERROR: fwrite failed. Test depends on this function.");
}
/* Test to see that FlushFileBuffers returns a success value */
TheReturn = fflush(TheFile);
if(TheReturn != 0)
{
Fail("ERROR: The fflush function returned non-zero, which "
"indicates failure, when trying to flush a buffer.");
}
/* Test to see that FlushFileBuffers returns a success value */
TheReturn = fflush(NULL);
if(TheReturn != 0)
{
Fail("ERROR: The fflush function returned non-zero, which "
"indicates failure, when trying to flush all buffers.");
}
/* Test to see that FlushFileBuffers returns a success value */
TheReturn = fflush(AnotherFile);
if(TheReturn != 0)
{
Fail("ERROR: The fflush function returned non-zero, which "
"indicates failure, when trying to flush a stream not "
"associated with a file.");
}
PAL_Terminate();
return PASS;
}
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