SUBROUTINE SORGTR( UPLO, N, A, LDA, TAU, WORK, LWORK, INFO) CHARACTER * 1 UPLO INTEGER N, LDA, LWORK, INFO REAL A(LDA,*), TAU(*), WORK(*) SUBROUTINE SORGTR_64( UPLO, N, A, LDA, TAU, WORK, LWORK, INFO) CHARACTER * 1 UPLO INTEGER*8 N, LDA, LWORK, INFO REAL A(LDA,*), TAU(*), WORK(*)
SUBROUTINE ORGTR( UPLO, [N], A, [LDA], TAU, [WORK], [LWORK], [INFO]) CHARACTER(LEN=1) :: UPLO INTEGER :: N, LDA, LWORK, INFO REAL, DIMENSION(:) :: TAU, WORK REAL, DIMENSION(:,:) :: A SUBROUTINE ORGTR_64( UPLO, [N], A, [LDA], TAU, [WORK], [LWORK], * [INFO]) CHARACTER(LEN=1) :: UPLO INTEGER(8) :: N, LDA, LWORK, INFO REAL, DIMENSION(:) :: TAU, WORK REAL, DIMENSION(:,:) :: A
void sorgtr(char uplo, int n, float *a, int lda, float *tau, int *info);
void sorgtr_64(char uplo, long n, float *a, long lda, float *tau, long *info);
if UPLO = 'U', Q = H(n-1) . . . H(2) H(1),
if UPLO = 'L', Q = H(1) H(2) . . . H(n-1).
If LWORK = -1, then a workspace query is assumed; the routine only calculates the optimal size of the WORK array, returns this value as the first entry of the WORK array, and no error message related to LWORK is issued by XERBLA.