pub unsafe extern "C" fn CeedQFunctionAddOutput(
qf: CeedQFunction,
field_name: *const c_char,
size: CeedInt,
eval_mode: CeedEvalMode,
) -> c_intpub unsafe extern "C" fn CeedQFunctionAddOutput(
qf: CeedQFunction,
field_name: *const c_char,
size: CeedInt,
eval_mode: CeedEvalMode,
) -> c_int