man > ffi_prep_cif_var(3)

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)