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Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/v/vscanf.html on line 1
Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/v/vscanf.html on line 8
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/v/vscanf.html on line 8
Scan input from standard input (varargs)
#include <stdio.h>
#include <stdarg.h>
int vscanf( const char * format,
va_list args );
- format
- A string that specifies the format of the input.
For more information, see
scanf().
The formatting string determines what additional arguments you need to
provide.
- args
- A variable-argument list of the additional arguments, which you
must have initialized with the
va_start()
macro.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The vscanf() function scans input from
stdin, under control of the argument format.
For information about the format string, see the description of
scanf().
The vscanf() function is a “varargs” version of
scanf().
The number of input arguments for which values were
successfully scanned and stored, or
EOF when the scanning is stopped by reaching the end of the
input stream before storing any values.
If an error occurs, errno
indicates the type of error.
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
void find( char *format, ... )
{
va_list arglist;
va_start( arglist, format );
vscanf( format, arglist );
va_end( arglist );
}
int main( void )
{
int day, year;
char weekday[10], month[12];
ffind( "%s %s %d %d",
weekday, month, &day, &year );
printf( "\n%s, %s %d, %d\n",
weekday, month, day, year );
return EXIT_SUCCESS;
}
ANSI,
POSIX 1003.1
Safety: | |
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
errno,
fscanf(),
fwscanf(),
scanf(),
sscanf(),
swscanf(),
va_start(),
vfscanf(),
vfwscanf(),
vsscanf(),
vswscanf(),
vwscanf(),
wscanf()
Warning: main(/www/www/htdocs/style/footer.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/v/vscanf.html on line 178
Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/footer.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/v/vscanf.html on line 178