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ffi_prep_cif_var(3)					   BSD Library Functions Manual 				       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 con-
     ventions to use.  atypes is an array of ntotalargs pointers to ffi_type structs that describe the data type, size and alignment of each argu-
     ment.  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