SUBROUTINE ZHPEV( JOBZ, UPLO, N, A, W, Z, LDZ, WORK, WORK2, INFO) CHARACTER * 1 JOBZ, UPLO DOUBLE COMPLEX A(*), Z(LDZ,*), WORK(*) INTEGER N, LDZ, INFO DOUBLE PRECISION W(*), WORK2(*) SUBROUTINE ZHPEV_64( JOBZ, UPLO, N, A, W, Z, LDZ, WORK, WORK2, INFO) CHARACTER * 1 JOBZ, UPLO DOUBLE COMPLEX A(*), Z(LDZ,*), WORK(*) INTEGER*8 N, LDZ, INFO DOUBLE PRECISION W(*), WORK2(*)
SUBROUTINE HPEV( JOBZ, UPLO, [N], A, W, Z, [LDZ], [WORK], [WORK2], * [INFO]) CHARACTER(LEN=1) :: JOBZ, UPLO COMPLEX(8), DIMENSION(:) :: A, WORK COMPLEX(8), DIMENSION(:,:) :: Z INTEGER :: N, LDZ, INFO REAL(8), DIMENSION(:) :: W, WORK2 SUBROUTINE HPEV_64( JOBZ, UPLO, [N], A, W, Z, [LDZ], [WORK], [WORK2], * [INFO]) CHARACTER(LEN=1) :: JOBZ, UPLO COMPLEX(8), DIMENSION(:) :: A, WORK COMPLEX(8), DIMENSION(:,:) :: Z INTEGER(8) :: N, LDZ, INFO REAL(8), DIMENSION(:) :: W, WORK2
void zhpev(char jobz, char uplo, int n, doublecomplex *a, double *w, doublecomplex *z, int ldz, int *info);
void zhpev_64(char jobz, char uplo, long n, doublecomplex *a, double *w, doublecomplex *z, long ldz, long *info);
On exit, A is overwritten by values generated during the reduction to tridiagonal form. If UPLO = 'U', the diagonal and first superdiagonal of the tridiagonal matrix T overwrite the corresponding elements of A, and if UPLO = 'L', the diagonal and first subdiagonal of T overwrite the corresponding elements of A.