tr_emptyelem_i(3PI) Sun Interval Performance Library tr_emptyelem_i(3PI)NAMEtr_emptyelem_i - Empty entry and its location.
DESCRIPTION
K = index of empty entry or K=-1
The routine TR_EMPTYELEM_I checks if an triangular 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 TR_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 (N,N).
ARGUMENTS
A (input)
Array of DIMENSION (N,N).
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
blas_error_shape
A has unappropriate shape
6 Mar 2009 tr_emptyelem_i(3PI)