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-.Dd January 25, 2011
-.Dt ffi_prep_cif_var 3
-.Sh NAME
-.Nm ffi_prep_cif_var
-.Nd Prepare a
-.Nm ffi_cif
-structure for use with
-.Nm ffi_call
-for variadic functions.
-.Sh SYNOPSIS
-.In ffi.h
-.Ft ffi_status
-.Fo ffi_prep_cif_var
-.Fa "ffi_cif *cif"
-.Fa "ffi_abi abi"
-.Fa "unsigned int nfixedargs"
-.Fa "unsigned int ntotalargs"
-.Fa "ffi_type *rtype"
-.Fa "ffi_type **atypes"
-.Fc
-.Sh DESCRIPTION
-The
-.Nm ffi_prep_cif_var
-function prepares a
-.Nm ffi_cif
-structure for use with
-.Nm ffi_call
-for variadic functions.
-.Fa abi
-specifies a set of calling conventions to use.
-.Fa atypes
-is an array of
-.Fa ntotalargs
-pointers to
-.Nm ffi_type
-structs that describe the data type, size and alignment of each argument.
-.Fa rtype
-points to an
-.Nm ffi_type
-that describes the data type, size and alignment of the
-return value.
-.Fa nfixedargs
-must contain the number of fixed (non-variadic) arguments.
-Note that to call a non-variadic function
-.Nm ffi_prep_cif
-must be used.
-.Sh RETURN VALUES
-Upon successful completion,
-.Nm ffi_prep_cif_var
-returns
-.Nm FFI_OK .
-It will return
-.Nm FFI_BAD_TYPEDEF
-if
-.Fa cif
-is
-.Nm NULL
-or
-.Fa atypes
-or
-.Fa rtype
-is malformed. If
-.Fa abi
-does not refer to a valid ABI,
-.Nm FFI_BAD_ABI
-will be returned. Available ABIs are
-defined in
-.Nm <ffitarget.h>
-.
-.Sh SEE ALSO
-.Xr ffi 3 ,
-.Xr ffi_call 3 ,
-.Xr ffi_prep_cif 3