Function Map

Constructs a read-write Map to a sparse matrix of size \a rows x \a cols, containing \a nnz non-zero coefficients, * stored as a sparse format as defined by the pointers \a outerIndexPtr, \a innerIndexPtr, and \a valuePtr. * If the optional parameter \a innerNonZerosPtr is the null pointer, then a standard compressed format is assumed. * * This constructor is available only