tb_emptyelem_i(3PI) Sun Interval Performance Library tb_emptyelem_i(3PI)NAMEtb_emptyelem_i - Empty entry and its location.
DESCRIPTION
K = index of empty entry or K=-1
The routine TB_EMPTYELEM_I checks if an triangular band interval matrix
A contains an empty interval entry. If A contains empty interval
entries, then the routine returns the smallest offset or index K
(according to the first index) such that Akj = [NaN_empty,NaN_empty].
Otherwise, the routine returns K=-1.
SYNOPSIS
INTERGER FUNCTION TB_EMPTYELEM_I( A [, UPLO] [, DIAG] )
INTERVAL, INTENT(IN) :: A(:,:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
TYPE(blas_diag_type), INTENT(IN), OPTIONAL :: DIAG
where
A has shape (P+1,N) where P = band width.
ARGUMENTS
A (input)
Array of DIMENSION (P+1,N) where P = band width.
Unchanged on exit.
UPLO(input)
Scalar element.
Specifies if the matrix operand is an upper
or lower tringular part of the matrix.
Possible values:
UPLO = blas_upper (default)
UPLO = blas_lower
Unchanged on exit.
DIAG (input)
Scalar element.
Specifies whether or not the matrix operand
has unit diagonal entries.
Possible values:
DIAG = blas_non_unit_diag (default)
DIAG = blas_unit_diag
Unchanged on exit.
ERRORS
blas_error_alloc
A is unallocated array
6 Mar 2009 tb_emptyelem_i(3PI)
