1ffi_prep_cif(3) BSD Library Functions Manual ffi_prep_cif(3)
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4 ffi_prep_cif — Prepare a ffi_cif structure for use with ffi_call
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7 #include <ffi.h>
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9 ffi_status
10 ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs,
11 ffi_type *rtype, ffi_type **atypes);
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14 The ffi_prep_cif function prepares a ffi_cif structure for use with
15 ffi_call abi specifies a set of calling conventions to use. atypes is an
16 array of nargs pointers to ffi_type structs that describe the data type,
17 size and alignment of each argument. rtype points to an ffi_type that
18 describes the data type, size and alignment of the return value.
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21 Upon successful completion, ffi_prep_cif returns FFI_OK. It will return
22 FFI_BAD_TYPEDEF if cif is NULL or atypes or rtype is malformed. If abi
23 does not refer to a valid ABI, FFI_BAD_ABI will be returned. Available
24 ABIs are defined in <ffitarget.h>
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27 ffi(3), ffi_call(3)
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29 February 15, 2008