SUBROUTINE ZTBTRS( UPLO, TRANSA, DIAG, N, NDIAG, NRHS, A, LDA, B, * LDB, INFO) CHARACTER * 1 UPLO, TRANSA, DIAG DOUBLE COMPLEX A(LDA,*), B(LDB,*) INTEGER N, NDIAG, NRHS, LDA, LDB, INFO SUBROUTINE ZTBTRS_64( UPLO, TRANSA, DIAG, N, NDIAG, NRHS, A, LDA, B, * LDB, INFO) CHARACTER * 1 UPLO, TRANSA, DIAG DOUBLE COMPLEX A(LDA,*), B(LDB,*) INTEGER*8 N, NDIAG, NRHS, LDA, LDB, INFO
SUBROUTINE TBTRS( UPLO, TRANSA, DIAG, N, NDIAG, NRHS, A, [LDA], B, * [LDB], [INFO]) CHARACTER(LEN=1) :: UPLO, TRANSA, DIAG COMPLEX(8), DIMENSION(:,:) :: A, B INTEGER :: N, NDIAG, NRHS, LDA, LDB, INFO SUBROUTINE TBTRS_64( UPLO, TRANSA, DIAG, N, NDIAG, NRHS, A, [LDA], * B, [LDB], [INFO]) CHARACTER(LEN=1) :: UPLO, TRANSA, DIAG COMPLEX(8), DIMENSION(:,:) :: A, B INTEGER(8) :: N, NDIAG, NRHS, LDA, LDB, INFO
void ztbtrs(char uplo, char transa, char diag, int n, int ndiag, int nrhs, doublecomplex *a, int lda, doublecomplex *b, int ldb, int *info);
void ztbtrs_64(char uplo, char transa, char diag, long n, long ndiag, long nrhs, doublecomplex *a, long lda, doublecomplex *b, long ldb, long *info);
where A is a triangular band matrix of order N, and B is an N-by-NRHS matrix. A check is made to verify that A is nonsingular.