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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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feoferr.c
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C/C++ Source or Header
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1998-06-17
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2KB
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71 lines
/***
*feoferr.c - defines feof() and ferror()
*
* Copyright (c) 1989-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Defines feof() (test for end-of-file on a stream) and ferror() (test
* for error on a stream).
*
*******************************************************************************/
#include <cruntime.h>
#include <stdio.h>
/* remove macro definitions for feof() and ferror()
*/
#undef feof
#undef ferror
/***
*int feof(stream) - test for end-of-file on stream
*
*Purpose:
* Tests whether or not the given stream is at end-of-file. Normally
* feof() is a macro, but it must also be available as a true function
* for ANSI.
*
*Entry:
* FILE *stream - stream to test
*
*Exit:
* returns nonzero (_IOEOF to be more precise) if and only if the stream
* is at end-of-file
*
*Exceptions:
*
*******************************************************************************/
int __cdecl feof (
FILE *stream
)
{
return( ((stream)->_flag & _IOEOF) );
}
/***
*int ferror(stream) - test error indicator on stream
*
*Purpose:
* Tests the error indicator for the given stream. Normally, feof() is
* a macro, but it must also be available as a true function for ANSI.
*
*Entry:
* FILE *stream - stream to test
*
*Exit:
* returns nonzero (_IOERR to be more precise) if and only if the error
* indicator for the stream is set.
*
*Exceptions:
*
*******************************************************************************/
int __cdecl ferror (
FILE *stream
)
{
return( ((stream)->_flag & _IOERR) );
}