with the array&rsquo;s length. XERBLA_ARRAY then copies
  up to 32 characters of that array into a Fortran string and passes
  that to XERBLA. If called with a non-positive SRNAME_LEN,
  XERBLA_ARRAY will call XERBLA with a string of all blank characters.</p>
<p>Say some macro or other device makes XERBLA_ARRAY available to C99
  by a name lapack_xerbla and with a common Fortran calling convention.
  Then a C99 program could invoke XERBLA via:
     {
       int flen = strlen(<strong>func</strong>);
       l