#include "blaswrap.h"
/* zlsets.f -- translated by f2c (version 20061008).
   You must link the resulting object file with libf2c:
	on Microsoft Windows system, link with libf2c.lib;
	on Linux or Unix systems, link with .../path/to/libf2c.a -lm
	or, if you install libf2c.a in a standard place, with -lf2c -lm
	-- in that order, at the end of the command line, as in
		cc *.o -lf2c -lm
	Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,

		http://www.netlib.org/f2c/libf2c.zip
*/

#include "f2c.h"

/* Table of constant values */

static integer c__1 = 1;

/* Subroutine */ int zlsets_(integer *m, integer *p, integer *n, 
	doublecomplex *a, doublecomplex *af, integer *lda, doublecomplex *b, 
	doublecomplex *bf, integer *ldb, doublecomplex *c__, doublecomplex *
	cf, doublecomplex *d__, doublecomplex *df, doublecomplex *x, 
	doublecomplex *work, integer *lwork, doublereal *rwork, doublereal *
	result)
{
    /* System generated locals */
    integer a_dim1, a_offset, af_dim1, af_offset, b_dim1, b_offset, bf_dim1, 
	    bf_offset;

    /* Local variables */
    static integer info;
    extern /* Subroutine */ int zget02_(char *, integer *, integer *, integer 
	    *, doublecomplex *, integer *, doublecomplex *, integer *, 
	    doublecomplex *, integer *, doublereal *, doublereal *), 
	    zcopy_(integer *, doublecomplex *, integer *, doublecomplex *, 
	    integer *), zgglse_(integer *, integer *, integer *, 
	    doublecomplex *, integer *, doublecomplex *, integer *, 
	    doublecomplex *, doublecomplex *, doublecomplex *, doublecomplex *
	    , integer *, integer *), zlacpy_(char *, integer *, integer *, 
	    doublecomplex *, integer *, doublecomplex *, integer *);


/*  -- LAPACK test routine (version 3.1) --   
       Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..   
       November 2006   


    Purpose   
    =======   

    ZLSETS tests ZGGLSE - a subroutine for solving linear equality   
    constrained least square problem (LSE).   

    Arguments   
    =========   

    M       (input) INTEGER   
            The number of rows of the matrix A.  M >= 0.   

    P       (input) INTEGER   
            The number of rows of the matrix B.  P >= 0.   

    N       (input) INTEGER   
            The number of columns of the matrices A and B.  N >= 0.   

    A       (input) COMPLEX*16 array, dimension (LDA,N)   
            The M-by-N matrix A.   

    AF      (workspace) COMPLEX*16 array, dimension (LDA,N)   

    LDA     (input) INTEGER   
            The leading dimension of the arrays A, AF, Q and R.   
            LDA >= max(M,N).   

    B       (input) COMPLEX*16 array, dimension (LDB,N)   
            The P-by-N matrix A.   

    BF      (workspace) COMPLEX*16 array, dimension (LDB,N)   

    LDB     (input) INTEGER   
            The leading dimension of the arrays B, BF, V and S.   
            LDB >= max(P,N).   

    C       (input) COMPLEX*16 array, dimension( M )   
            the vector C in the LSE problem.   

    CF      (workspace) COMPLEX*16 array, dimension( M )   

    D       (input) COMPLEX*16 array, dimension( P )   
            the vector D in the LSE problem.   

    DF      (workspace) COMPLEX*16 array, dimension( P )   

    X       (output) COMPLEX*16 array, dimension( N )   
            solution vector X in the LSE problem.   

    WORK    (workspace) COMPLEX*16 array, dimension (LWORK)   

    LWORK   (input) INTEGER   
            The dimension of the array WORK.   

    RWORK   (workspace) DOUBLE PRECISION array, dimension (M)   

    RESULT  (output) DOUBLE PRECISION array, dimension (2)   
            The test ratios:   
              RESULT(1) = norm( A*x - c )/ norm(A)*norm(X)*EPS   
              RESULT(2) = norm( B*x - d )/ norm(B)*norm(X)*EPS   

    ====================================================================   


       Copy the matrices A and B to the arrays AF and BF,   
       and the vectors C and D to the arrays CF and DF,   

       Parameter adjustments */
    af_dim1 = *lda;
    af_offset = 1 + af_dim1;
    af -= af_offset;
    a_dim1 = *lda;
    a_offset = 1 + a_dim1;
    a -= a_offset;
    bf_dim1 = *ldb;
    bf_offset = 1 + bf_dim1;
    bf -= bf_offset;
    b_dim1 = *ldb;
    b_offset = 1 + b_dim1;
    b -= b_offset;
    --c__;
    --cf;
    --d__;
    --df;
    --x;
    --work;
    --rwork;
    --result;

    /* Function Body */
    zlacpy_("Full", m, n, &a[a_offset], lda, &af[af_offset], lda);
    zlacpy_("Full", p, n, &b[b_offset], ldb, &bf[bf_offset], ldb);
    zcopy_(m, &c__[1], &c__1, &cf[1], &c__1);
    zcopy_(p, &d__[1], &c__1, &df[1], &c__1);

/*     Solve LSE problem */

    zgglse_(m, n, p, &af[af_offset], lda, &bf[bf_offset], ldb, &cf[1], &df[1],
	     &x[1], &work[1], lwork, &info);

/*     Test the residual for the solution of LSE   

       Compute RESULT(1) = norm( A*x - c ) / norm(A)*norm(X)*EPS */

    zcopy_(m, &c__[1], &c__1, &cf[1], &c__1);
    zcopy_(p, &d__[1], &c__1, &df[1], &c__1);
    zget02_("No transpose", m, n, &c__1, &a[a_offset], lda, &x[1], n, &cf[1], 
	    m, &rwork[1], &result[1]);

/*     Compute result(2) = norm( B*x - d ) / norm(B)*norm(X)*EPS */

    zget02_("No transpose", p, n, &c__1, &b[b_offset], ldb, &x[1], n, &df[1], 
	    p, &rwork[1], &result[2]);

    return 0;

/*     End of ZLSETS */

} /* zlsets_ */