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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 the PAL implementation of the feof function.
** Open a file, and read some characters. Check that
** feof states that it hasn't gone by the EOF. Then
** read enough characters to go beyond the EOF, and check
** that feof states this is so.
**
** Depends:
** fopen
** fread
**
**
**
**===================================================================*/
/* The file 'testfile' should exist with 15 characters in it. If not,
something has been lost ...
*/
#include <palsuite.h>
int __cdecl main(int argc, char **argv)
{
const char filename[] = "testfile";
char buffer[128];
FILE * fp = NULL;
int result;
if (PAL_Initialize(argc, argv))
{
return FAIL;
}
/* Open a file in READ mode */
if((fp = fopen(filename, "r")) == NULL)
{
Fail("Unable to open a file for reading. Is the file "
"in the directory? It should be.");
}
/* Read 10 characters from the file. The file has 15
characters in it.
*/
if((result = fread(buffer,1,10,fp)) == 0)
{
Fail("ERROR: Zero characters read from the file. It should have "
"read 10 character in it.");
}
if(feof(fp))
{
Fail("ERROR: feof returned a value greater than 0. No read "
"operation has gone beyond the EOF yet, and feof should "
"return 0 still.");
}
/* Read 10 characters from the file. The file has 15
characters in it. The file pointer should have no passed
the end of file.
*/
if((result = fread(buffer,1,10,fp)) == 0)
{
Fail("ERROR: Zero characters read from the file. It should have "
"read 5 character in it.");
}
if(feof(fp) == 0)
{
Fail("ERROR: feof returned 0. The file pointer has gone beyond "
"the EOF and this function should return positive now.");
}
PAL_Terminate();
return PASS;
}
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