__fwprintf_chk

Name

__fwprintf_chk -- convert formatted wide-character output, with stack checking

Synopsis

#include <wchar.h>

int __fwprintf_chk(FILE * stream, int flag, const wchar_t * format);

Description

The interface __fwprintf_chk() shall function in the same way as the interface fwprintf(), except that __fwprintf_chk() shall check for stack overflow before computing a result, depending on the value of the flag parameter. If an overflow is anticipated, the function shall abort and the program calling it shall exit.

In general, the higher the value of flag, the more security measures this interface shall take in the form of checking the stack, parameter values, and so on.

The __fwprintf_chk() function is not in the source standard; it is only in the binary standard.