#include "safe_str_lib.h"

Include dependency graph for vswscanf_s.c:

Functions
EXPORT int	vswscanf_s (const wchar_t restrict src, const wchar_t restrict fmt, va_list ap)
	The vswscanf_s function reads a formatted wide string. More...

Function Documentation

◆ vswscanf_s()

The vswscanf_s function reads a formatted wide string.

Reaching the end of the string is equivalent to reaching the end-of-file condition for fwscanf.

Remarks

SPECIFIED IN

C11 standard (ISO/IEC 9899:2011): K.3.9.1.10 The vswscanf_s function (p: 635-636) http://en.cppreference.com/w/c/io/vfwscanf

Parameters

[in]	src	pointer to a null-terminated wide string to read from
[in]	fmt	format-control wide string.
[in]	ap	arguments to write to

Precondition: Neither src nor fmt shall be a null pointer.; fmt shall not contain the conversion specifier n; None of the arguments corresponding to s is a null pointer. (not yet); No encoding error shall occur.; c, s, and %[ conversion specifiers each expect two arguments (the usual pointer and a value of type rsize_t indicating the size of the receiving array, which may be 1 when reading with a lc into a single wide character) and except that the following errors are detected at runtime and call the currently installed constraint handler function. (not yet)

Warning: The current implementation just does some basic argument checks and then calls the native vsscanf() libc function. Thus the s null pointer check and the two-arg versions of c, s, and %[ are not yet implemented.

Returns: Number of receiving arguments successfully assigned, or EOF if read failure occurs before the first receiving argument was assigned or if there is a runtime constraint violation.

Return values

>	0 on success, the number of arguments assigned
EOF	on error