SUBROUTINE LA_TEST_CGELSS( M, N, NRHS, A, LDA, B, LDB, S, RCOND, RANK, WORK, LWORK, RWORK, INFO) ! ! -- LAPACK95 interface driver routine (version 0.0) -- ! UNI-C, Denmark; Univ. of Tennessee, USA; NAG Ltd., UK ! October 31, 1996 ! ! .. Use Statements .. USE LA_PRECISION, ONLY: WP => SP USE F95_LAPACK, ONLY: LA_GELSS ! .. Implicit Statement .. IMPLICIT NONE ! .. Scalar Arguments .. INTEGER, INTENT(IN) :: M, N, NRHS, LDA, LDB, LWORK INTEGER, INTENT(INOUT) :: INFO REAL(WP), INTENT(IN) :: RCOND INTEGER, INTENT(OUT) :: RANK ! .. Array Arguments .. COMPLEX(WP), INTENT(INOUT) :: A(1:LDA,1:N), B(1:LDB,1:NRHS) COMPLEX(WP), INTENT(OUT) :: WORK(1:LWORK) REAL(WP), INTENT(OUT) :: S(1: MIN(M,N)) REAL(WP) :: RWORK(1: 5*min(M,N)-1) ! .. Parameters .. CHARACTER(LEN=8), PARAMETER :: SRNAME = 'LA_GELSS' CHARACTER(LEN=14), PARAMETER :: SRNAMT = 'LA_TEST_CGELSS' ! .. Common blocks .. INTEGER :: INFOTC COMMON /LINFO95/ INFOTC ! .. Local Scalars .. INTEGER :: I, J, IA1, IA2, IB1, IB2, IS REAL:: IRCOND ! .. Local Arrays .. INTEGER, SAVE, POINTER :: IWORK(:) LOGICAL, SAVE :: CTEST = .TRUE., ETEST = .TRUE. ! .. Executable Statements .. IA1 = M; IA2 = N; IB1 = MAX(1,m,n); IB2 = NRHS; IS = MIN(M,N) IRCOND = RCOND I = INFO / 100; J = INFO - I*100 SELECT CASE(I) CASE(0) IF (NRHS == 1) THEN CALL LA_GELSS( A(1:IA1,1:IA2), B(1:IB1,1), RANK, S(1:IS), & & IRCOND, INFO) INFO = INFOTC ELSE CALL LA_GELSS( A(1:IA1,1:IA2), B(1:IB1,1:IB2), RANK, S(1:IS), & & IRCOND, INFO) INFO = INFOTC END IF CASE (2) IB1 = MAX(1,M, N) - 2 CASE(4) IS = MIN(M,N) - 1 CASE(:-1,1,3 ,5:) CALL UESTOP(SRNAMT) END SELECT IF( I /= 0 ) THEN SELECT CASE (NRHS) CASE (2:) CALL LA_GELSS( A(1:IA1,1:IA2), B(1:IB1,1:IB2), RANK, S(1:IS), & & IRCOND, INFO) CASE(1) CALL LA_GELSS( A(1:IA1,1:IA2), B(1:IB1,1), RANK, S(1:IS), & & IRCOND, INFO) CASE(:-1) CALL UESTOP(SRNAMT) END SELECT END IF CALL LA_AUX_AA01( I, CTEST, ETEST, SRNAMT ) END SUBROUTINE LA_TEST_CGELSS