Reads input from the standard input (stdin) under control of the
    wide-character format string.

    Format

      #include  <wchar.h>

      int wscanf  (const wchar_t *format, . . . );

1  –  Arguments

 format

    A pointer to a wide-character string containing the format
    specifications.

  . . .

    Optional expressions whose results correspond to conversion
    specifications given in the format specification.

    If no conversion specifications are given, you can omit the input
    pointers. Otherwise, the function calls must have exactly as
    many input pointers as there are conversion specifications, and
    the conversion specifications must match the types of the input
    pointers.

    Conversion specifications are matched to input sources in left-
    to-right order. Excess input pointers, if any, are ignored.

2  –  Description

    The wscanf function is equivalent to the fwscanf function with
    the stdin arguments interposed before the wscanf arguments.

3  –  Return Values

    n                  The number of input items assigned. The number
                       can be less than provided for, even zero, in
                       the event of an early matching failure.
    EOF                Indicates an error. An input failure occurred
                       before any conversion.