VPRINTF(3W-SVR4)    RISC/os Reference Manual     VPRINTF(3W-SVR4)



NAME
     vprintf, vfprintf, vsprintf - print formatted output of a
          variable argument list

SYNOPSIS
     #include <stdio.h>
     #include <stdarg.h>
     #include <widec.h>

     int vprintf (const char *format, va_list ap);
     int vfprintf (FILE *stream, const char *format, va_list ap);

     int vsprintf (char *s, const char *format, va_list ap);

DESCRIPTION
     vprintf(), vfprint(), and vsprintf() are the same as
     printf(), fprintf(), and sprintf() respectively, except that
     instead of being called with a variable number of arguments,
     they are called with an argument list as defined by the
     <stdarg.h> header file.

     wc and ws are the new conversion specifications for wchar_t
     character control.  Both wc and ws may be used in all three
     functions.

     wc   The wchar_t character arg is transformed into EUC, and
          then printed.  If a field width is specified and the
          transformed EUC has fewer bytes than the field width,
          it will by padded to the given width.  A precision
          specification is ignored, if specified.

     ws   The arg is taken to be a wchar_t string and the wchar_t
          characters from the string are transformed into EUC,
          and printed until a wchar_t null character is encoun-
          tered or the number of bytes indicated by the precision
          specification is printed.  If the precision specifica-
          tion is missing, it is taken to be infinite, and all
          wchar_t characters up to the first wchar_t null charac-
          ter are transformed into EUC and printed.  If a field
          width is specified and the transformed EUC have fewer
          bytes than the field width, they are padded to the
          given width.

     The ASCII space character (0x20) is used as a padding char-
     acters.

SEE ALSO
     printf(3W), scanf(3W), stdio(3S), vprintf(3S), widec(3W),
     stdarg(5).






                        Printed 11/19/92                   Page 1