ffi_prep_cif — Prepare a ffi_cif structure for use with ffi_call

The ffi_prep_cif function prepares a ffi_cif structure for use with ffi_callabi 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.

ffi_prep_cif — Prepare a ffi_cif structure for use with ffi_call

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>.

ffi(3), ffi_call(3), ffi_prep_cif_var(3) February 15, 2008 ffi_prep_cif(3)

#include<ffi.h>ffi_statusffi_prep_cif(ffi_cif*cif, ffi_abiabi, unsignedintnargs, ffi_type*rtype, ffi_type**atypes);