sp_emptyelem_i(3PI) Sun Interval Performance Library sp_emptyelem_i(3PI)NAMEsp_emptyelem_i - Empty entry and its location.
DESCRIPTION
K = index of empty entry or K=-1
The routine SP_EMPTYELEM_I checks if an symmetric packed interval
matrix A contains an empty interval entry. If A contains empty interval
entries, then the routine returns the smallest offset or index K such
that
Ak = [NaN_empty,NaN_empty]. Otherwise, the routine returns K=-1.
SYNOPSIS
INTERGER FUNCTION SP_EMPTYELEM_I( A [, UPLO] )
INTERVAL, INTENT(IN) :: A(:)
TYPE(blas_uplo_type), INTENT(IN), OPTIONAL :: UPLO
where
A has shape (N*(N+1)/2).
ARGUMENTS
A (input)
Array of DIMENSION (N*(N+1)/2).
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.
ERRORS
blas_error_alloc
A is unallocated array
6 Mar 2009 sp_emptyelem_i(3PI)
