54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* getw.c - get a word. stdio.h */
|
|
|
|
/* Copyright 1992-1993 Wind River Systems, Inc. */
|
|
|
|
/*
|
|
modification history
|
|
--------------------
|
|
01c,05mar93,jdi documentation cleanup for 5.1.
|
|
01b,20sep92,smb documentation additions
|
|
01a,29jul92,smb written.
|
|
*/
|
|
|
|
/*
|
|
DESCRIPTION
|
|
|
|
INCLUDE FILE: stdio.h, string.h
|
|
|
|
SEE ALSO: American National Standard X3.159-1989
|
|
|
|
NOMANUAL
|
|
*/
|
|
|
|
#include "vxWorks.h"
|
|
#include "stdio.h"
|
|
|
|
/******************************************************************************
|
|
*
|
|
* getw - read the next word (32-bit integer) from a stream
|
|
*
|
|
* This routine reads the next 32-bit quantity from a specified stream.
|
|
* It returns EOF on end-of-file or an error; however, this is also a
|
|
* valid integer, thus feof() and ferror() must be used to check for
|
|
* a true end-of-file.
|
|
*
|
|
* This routine is provided for compatibility with earlier VxWorks releases.
|
|
*
|
|
* INCLUDE FILES: stdio.h
|
|
*
|
|
* RETURN: A 32-bit number from the stream, or EOF on either end-of-file
|
|
* or an error.
|
|
*
|
|
* SEE ALSO: putw()
|
|
*/
|
|
|
|
int getw
|
|
(
|
|
FILE * fp /* stream to read from */
|
|
)
|
|
{
|
|
int x;
|
|
|
|
return (fread ((void *)&x, sizeof (x), 1, fp) == 1 ? x : EOF);
|
|
}
|