NAME

       ffi_prep_cif_var — Prepare a ffi_cif structure for use with ffi_call for variadic functions.

SYNOPSIS

       #include <ffi.h>

       ffi_status
       ffi_prep_cif_var(ffi_cif *cif,     ffi_abi abi,     unsigned int nfixedargs,     unsigned int ntotalargs,
           ffi_type *rtype, ffi_type **atypes);

DESCRIPTION

       The ffi_prep_cif_var function prepares a ffi_cif structure for use with ffi_call for variadic  functions.
       abi specifies a set of calling conventions to use.  atypes is an array of ntotalargs pointers to ffi_type
       structs  that  describe  the data type, size and alignment of each argument.  rtype points to an ffi_type
       that describes the data type, size and alignment of the return value.  nfixedargs must contain the number
       of fixed (non-variadic) arguments.  Note that to call a non-variadic function ffi_prep_cif must be used.

RETURN VALUES

       Upon successful completion, ffi_prep_cif_var returns FFI_OK.  It will return FFI_BAD_TYPEDEF  if  cif  is
       NULL or atypes or rtype is malformed. If abi does not refer to a valid ABI, FFI_BAD_ABI will be returned.
       Available ABIs are defined in <ffitarget.h>

SEE ALSO

       ffi(3), ffi_call(3), ffi_prep_cif(3)

                                                January 25, 2011                             ffi_prep_cif_var(3)