va_start
[initialize variable argument list]
SYNOPSIS #include <varargs.h> va_list ap; va_start(ap);
DESCRIPTION
With the varargs.h
macros, use va_start
to initialize a data structure, ap,
to permit manipulating a variable argument list. ap
must have the type, va_alist.
RETURNS
va_start
does not return a result.
COMPLIANCE
va_start
is also defined as a macro in ANSI C, but the definitions are incompatible;
the ANSI version has another parameter besides ap.