getw.c
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:1k
- /* 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);
- }