inline std::ptrdiff_t pptri( const UpLo, const fortran_int_t n, double* ap ) { fortran_int_t info(0); LAPACK_DPPTRI( &lapack_option< UpLo >::value, &n, ap, &info ); return info; }
inline void pptri (char const uplo, int const n, double* ap, int* info) { LAPACK_DPPTRI (&uplo, &n, ap, info); }