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 conven-
tions 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 align-
ment 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. Avail-
able ABIs are defined in <ffitarget.h>
SEE ALSO
ffi(3), ffi_call(3), ffi_prep_cif(3)
January 25, 2011
libffi 3.4.2 - Generated Thu Sep 2 05:54:06 CDT 2021