ila?lr

Scans a matrix for its last non-zero row.

Syntax

value = ilaslr(m, n, a, lda)

value = iladlr(m, n, a, lda)

value = ilaclr(m, n, a, lda)

value = ilazlr(m, n, a, lda)

Include Files

  • mkl.fi

Description

The ila?lr routines scan a matrix A for its last non-zero row.

Input Parameters

m

INTEGER. Specifies number of rows in the matrix A.

n

INTEGER. Specifies number of columns in the matrix A.

a

REAL for ilaslr

DOUBLE PRECISION for iladlr

COMPLEX for ilaclr

DOUBLE COMPLEX for idazlr

Array, DIMENSION(lda, *). The second dimension of a must be at least max(1, n).

Before entry the leading n-by-n part of the array a must contain the matrix A.

lda

INTEGER. Specifies the leading dimension of a as declared in the calling (sub)program. The value of lda must be at least max(1, m).

Output Parameters

value
INTEGER

Number of the last non-zero row.

For more complete information about compiler optimizations, see our Optimization Notice.