Originální popis anglicky:
vfscanf, vscanf, vsscanf - format input of a stdarg argument list
Návod, kniha: POSIX Programmer's Manual
#include <stdarg.h>
#include <stdio.h>
int vfscanf(FILE *restrict
stream, const char
*restrict format,
va_list
arg );
int vscanf(const char *restrict
format, va_list
arg);
int vsscanf(const char *restrict
s, const char
*restrict format,
va_list
arg );
The
vscanf(),
vfscanf(), and
vsscanf() functions shall be
equivalent to the
scanf(),
fscanf(), and
sscanf()
functions, respectively, except that instead of being called with a variable
number of arguments, they are called with an argument list as defined in the
<stdarg.h> header. These functions shall not invoke the
va_end macro. As these functions invoke the
va_arg macro, the
value of
ap after the return is unspecified.
Refer to
fscanf() .
Refer to
fscanf() .
The following sections are informative.
None.
Applications using these functions should call
va_end(
ap)
afterwards to clean up.
None.
None.
fscanf() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<stdarg.h>,
<stdio.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
