You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
2.7 KiB
92 lines
2.7 KiB
/***
|
|
*scanf.c - read formatted data from stdin
|
|
*
|
|
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* defines scanf() - reads formatted data from stdin
|
|
*
|
|
*Revision History:
|
|
* 09-02-83 RN initial version
|
|
* 04-13-87 JCR added const to declaration
|
|
* 06-24-87 JCR (1) Made declaration conform to ANSI prototype and use
|
|
* the va_ macros; (2) removed SS_NE_DS conditionals.
|
|
* 11-04-87 JCR Multi-thread support
|
|
* 12-11-87 JCR Added "_LOAD_DS" to declaration
|
|
* 05-27-88 PHG Merged DLL and normal versions
|
|
* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables
|
|
* 08-17-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat
|
|
* model). Also fixed copyright and indents.
|
|
* 02-15-90 GJF Fixed copyright
|
|
* 03-19-90 GJF Made calling type _CALLTYPE2, added #include
|
|
* <cruntime.h> and removed #include <register.h>.
|
|
* 07-23-90 SBM Replaced <assertm.h> by <assert.h>
|
|
* 10-03-90 GJF New-style function declarator.
|
|
* 04-06-93 SKS Replace _CRTAPI* with __cdecl
|
|
* 09-06-94 CFW Replace MTHREAD with _MT.
|
|
* 02-06-94 CFW assert -> _ASSERTE.
|
|
* 03-07-95 GJF Use _[un]lock_str2 instead of _[un]lock_str. Also,
|
|
* removed useless local and macro.
|
|
* 03-02-98 GJF Exception-safe locking.
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#include <cruntime.h>
|
|
#include <stdio.h>
|
|
#include <dbgint.h>
|
|
#include <stdarg.h>
|
|
#include <file2.h>
|
|
#include <internal.h>
|
|
#include <mtdll.h>
|
|
|
|
/***
|
|
*int scanf(format, ...) - read formatted data from stdin
|
|
*
|
|
*Purpose:
|
|
* Reads formatted data from stdin into arguments. _input does the real
|
|
* work here.
|
|
*
|
|
*Entry:
|
|
* char *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 scanf (
|
|
const char *format,
|
|
...
|
|
)
|
|
/*
|
|
* stdin 'SCAN', 'F'ormatted
|
|
*/
|
|
{
|
|
int retval;
|
|
|
|
va_list arglist;
|
|
|
|
va_start(arglist, format);
|
|
|
|
_ASSERTE(format != NULL);
|
|
|
|
#ifdef _MT
|
|
_lock_str2(0, stdin);
|
|
__try {
|
|
#endif
|
|
|
|
retval = (_input(stdin,format,arglist));
|
|
|
|
#ifdef _MT
|
|
}
|
|
__finally {
|
|
_unlock_str2(0, stdin);
|
|
}
|
|
#endif
|
|
|
|
return(retval);
|
|
}
|