checkCharVec            Checking if all elements of a list are all
                        character vectors
checkIntVec             Checking if all elements of a list are all
                        integer vectors
checkLength             Checking if the length of the different
                        elements of a list corresponds to what one
                        expects.
checkLogicVec           Checking if all elements of a list are all
                        logical vectors
checkNumOrIntVec        Checking if all elements of a list are all
                        integer or numeric vectors
checkNumVec             Checking if all elements of a list are all
                        numeric vectors
checkRanges             Checking if the value of a numeric or integer
                        variable (of length 1) is located within a
                        certain range.
checkValues             Checking if the value of vectors (of length 1)
                        is authorized.
