/* @deftypefn Supplemental int vprintf (const char *@var{format}, va_list @var{ap})@deftypefnx Supplemental int vfprintf (FILE *@var{stream}, @  const char *@var{format}, va_list @var{ap})@deftypefnx Supplemental int vsprintf (char *@var{str}, @  const char *@var{format}, va_list @var{ap}) These functions are the same as @code{printf}, @code{fprintf}, and@code{sprintf}, respectively, except that they are called with a@code{va_list} instead of a variable number of arguments.  Note thatthey do not call @code{va_end}; this is the application'sresponsibility.  In @libib{} they are implemented in terms of thenonstandard but common function @code{_doprnt}. @end deftypefn */ #include <ansidecl.h>#include <stdarg.h>#include <stdio.h>#undef vprintfintvprintf (const char *format, va_list ap){  return vfprintf (stdout, format, ap);}