NAME

       ffi_prep_cif — Prepare a ffi_cif structure for use with ffi_call

SYNOPSIS

       #include <ffi.h>

       ffi_status
       ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes);

DESCRIPTION

       The  ffi_prep_cif  function  prepares  a  ffi_cif  structure for use with ffi_call abi specifies a set of
       calling conventions to use.  atypes is an array of nargs 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. Note that to call a variadic function ffi_prep_cif_var must
       be used instead.

RETURN VALUES

       Upon successful completion, ffi_prep_cif 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_var(3)

                                                February 15, 2008                                ffi_prep_cif(3)