windows-nt/Source/XPSP1/NT/base/crts/crtw32/stdio/fwscanf.c
2020-09-26 16:20:57 +08:00

87 lines
1.9 KiB
C

/***
*fwscanf.c - read formatted data from stream
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines fwscanf() - reads formatted data from stream
*
*Revision History:
* 05-16-92 KRS Created from fscanf.c.
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
* 02-07-94 CFW POSIXify.
* 09-06-94 CFW Replace MTHREAD with _MT.
* 02-06-94 CFW assert -> _ASSERTE.
* 03-07-95 GJF _[un]lock_str macros now take FILE * arg.
* 03-02-98 GJF Exception-safe locking.
*
*******************************************************************************/
#ifndef _POSIX_
#include <cruntime.h>
#include <stdio.h>
#include <wchar.h>
#include <dbgint.h>
#include <stdarg.h>
#include <file2.h>
#include <internal.h>
#include <mtdll.h>
/***
*int fwscanf(stream, format, ...) - read formatted data from stream
*
*Purpose:
* Reads formatted data from stream into arguments. _input does the real
* work here.
*
*Entry:
* FILE *stream - stream to read data from
* wchar_t *format - format string
* followed by list of pointers to storage for the data read. The number
* and type are controlled by the format string.
*
*Exit:
* returns number of fields read and assigned
*
*Exceptions:
*
*******************************************************************************/
int __cdecl fwscanf (
FILE *stream,
const wchar_t *format,
...
)
/*
* 'F'ile (stream) 'W'char_t 'SCAN', 'F'ormatted
*/
{
int retval;
va_list arglist;
va_start(arglist, format);
_ASSERTE(stream != NULL);
_ASSERTE(format != NULL);
#ifdef _MT
_lock_str(stream);
__try {
#endif
retval = (_winput(stream,format,arglist));
#ifdef _MT
}
__finally {
_unlock_str(stream);
}
#endif
return(retval);
}
#endif /* _POSIX_ */