Man page - ffi_prep_cif_var(3)

Packages contains this manual

Package:  libffi-dev
apt-get install libffi-dev

Manuals in package:
• ffi_prep_cif(3)
• ffi_call(3)
• ffi_prep_cif_var(3)
• ffi(3)
Documentations in package:
• libffi8

Manual

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 conventions 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 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 ffi_prep_cif_var (3)