scanf.gml

开放源码的编译器open watcom 1.6.0版的源代码

.func scanf wscanf _uscanf
.funcw wscanf
#include <stdio.h>
int scanf( const char *format, ... );
.ixfunc2 '&StrIo' &func
.if &'length(&wfunc.) ne 0 .do begin
#include <wchar.h>
int wscanf( const wchar_t *format, ... );
.ixfunc2 '&StrIo' &wfunc
.ixfunc2 '&Wide' &wfunc
.do end
.if &'length(&ufunc.) ne 0 .do begin
int _uscanf( const wchar_t *format, ... );
.ixfunc2 '&StrIo' &ufunc
.do end
.funcend
.*
.safealt
.*
.desc begin
The &func function scans input from the file designated by
.kw stdin
under control of the argument
.arg format.
The
.arg format
string is described below.
Following the format string is the list of addresses of items to
receive values.
.if &'length(&wfunc.) ne 0 .do begin
.np
The &wfunc function is identical to &func except that it accepts a
wide-character string argument for
.arg format.
.do end
.if &'length(&ufunc.) ne 0 .do begin
.np
The &ufunc Unicode function is identical to &func except that it
accepts a Unicode string argument for
.arg format
and the input consists of 16-bit Unicode characters.
.do end
.desc end
.*
.return begin
The &func function returns
.kw EOF
if an input failure occured before any conversion.
Otherwise, the number of input arguments for which values were
successfully scanned and stored is returned.
.return end
.*
.see begin
.im seevscnf scanf
.see end
.*
.exmp begin
.blktext begin
To scan a date in the form "Saturday April 18 1987":
.blktext end
.blkcode begin
#include <stdio.h>

void main( void )
{
    int day, year;
    char weekday[10], month[10];
.exmp break
    scanf( "%s %s %d %d", weekday, month, &day, &year );
}
.blkcode end
.*
.exmp end
.im scanfs