Function SCIPmatrixCreate 

pub unsafe extern "C" fn SCIPmatrixCreate(
    scip: *mut SCIP,
    matrixptr: *mut *mut SCIP_MATRIX,
    onlyifcomplete: c_uint,
    initialized: *mut c_uint,
    complete: *mut c_uint,
    infeasible: *mut c_uint,
    naddconss: *mut c_int,
    ndelconss: *mut c_int,
    nchgcoefs: *mut c_int,
    nchgbds: *mut c_int,
    nfixedvars: *mut c_int,
) -> SCIP_RETCODE

initialize matrix by copying all check constraints

@note Completeness is checked by testing whether all check constraints are from a list of linear constraint handlers that can be represented.