text: /* clarhs.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"
  #include "blaswrap.h"
  
  /* Table of constant values */
  
  static complex c_b1 = {1.f,0.f};
  static complex c_b2 = {0.f,0.f};
  static integer c__2 = 2;
  static integer c__1 = 1;
  
  /* Subroutine */ int clarhs_(char *path, char *xtype, char *uplo, char *trans, 
  	 integer *m, integer *n, integer *kl, integer *ku, integer *nrhs, 
  	complex *a, integer *lda, complex *x, integer *ldx, complex *b, 
  	integer *ldb, integer *iseed, integer *info)
  {
      /* System generated locals */
      integer a_dim1, a_offset, b_dim1, b_offset, x_dim1, x_offset, i__1;
  
      /* Builtin functions */
      /* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen);
  
      /* Local variables */
      integer j;
      char c1[1], c2[2];
      integer mb, nx;
      logical gen, tri, qrs, sym, band;
      char diag[1];
      logical tran;
      extern /* Subroutine */ int cgemm_(char *, char *, integer *, integer *, 
  	    integer *, complex *, complex *, integer *, complex *, integer *, 
  	    complex *, complex *, integer *), chemm_(char *, 
  	    char *, integer *, integer *, complex *, complex *, integer *, 
  	    complex *, integer *, complex *, complex *, integer *), cgbmv_(char *, integer *, integer *, integer *, integer *
  , complex *, complex *, integer *, complex *, integer *, complex *
  , complex *, integer *), chbmv_(char *, integer *, 
  	    integer *, complex *, complex *, integer *, complex *, integer *, 
  	    complex *, complex *, integer *);
      extern logical lsame_(char *, char *);
      extern /* Subroutine */ int csbmv_(char *, integer *, integer *, complex *
  , complex *, integer *, complex *, integer *, complex *, complex *
  , integer *), ctbmv_(char *, char *, char *, integer *, 
  	    integer *, complex *, integer *, complex *, integer *), chpmv_(char *, integer *, complex *, complex *, 
  	    complex *, integer *, complex *, complex *, integer *), 
  	    ctrmm_(char *, char *, char *, char *, integer *, integer *, 
  	    complex *, complex *, integer *, complex *, integer *), cspmv_(char *, integer *, complex *, 
  	    complex *, complex *, integer *, complex *, complex *, integer *), csymm_(char *, char *, integer *, integer *, complex *, 
  	    complex *, integer *, complex *, integer *, complex *, complex *, 
  	    integer *), ctpmv_(char *, char *, char *, 
  	    integer *, complex *, complex *, integer *), clacpy_(char *, integer *, integer *, complex *, integer 
  	    *, complex *, integer *), xerbla_(char *, integer *);
      extern logical lsamen_(integer *, char *, char *);
      extern /* Subroutine */ int clarnv_(integer *, integer *, integer *, 
  	    complex *);
      logical notran;
  
  
  /*  -- LAPACK test routine (version 3.1) -- */
  /*     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
  /*     November 2006 */
  
  /*     .. Scalar Arguments .. */
  /*     .. */
  /*     .. Array Arguments .. */
  /*     .. */
  
  /*  Purpose */
  /*  ======= */
  
  /*  CLARHS chooses a set of NRHS random solution vectors and sets */
  /*  up the right hand sides for the linear system */
  /*     op( A ) * X = B, */
  /*  where op( A ) may be A, A**T (transpose of A), or A**H (conjugate */
  /*  transpose of A). */
  
  /*  Arguments */
  /*  ========= */
  
  /*  PATH    (input) CHARACTER*3 */
  /*          The type of the complex matrix A.  PATH may be given in any */
  /*          combination of upper and lower case.  Valid paths include */
  /*             xGE:  General m x n matrix */
  /*             xGB:  General banded matrix */
  /*             xPO:  Hermitian positive definite, 2-D storage */
  /*             xPP:  Hermitian positive definite packed */
  /*             xPB:  Hermitian positive definite banded */
  /*             xHE:  Hermitian indefinite, 2-D storage */
  /*             xHP:  Hermitian indefinite packed */
  /*             xHB:  Hermitian indefinite banded */
  /*             xSY:  Symmetric indefinite, 2-D storage */
  /*             xSP:  Symmetric indefinite packed */
  /*             xSB:  Symmetric indefinite banded */
  /*             xTR:  Triangular */
  /*             xTP:  Triangular packed */
  /*             xTB:  Triangular banded */
  /*             xQR:  General m x n matrix */
  /*             xLQ:  General m x n matrix */
  /*             xQL:  General m x n matrix */
  /*             xRQ:  General m x n matrix */
  /*          where the leading character indicates the precision. */
  
  /*  XTYPE   (input) CHARACTER*1 */
  /*          Specifies how the exact solution X will be determined: */
  /*          = 'N':  New solution; generate a random X. */
  /*          = 'C':  Computed; use value of X on entry. */
  
  /*  UPLO    (input) CHARACTER*1 */
  /*          Used only if A is symmetric or triangular; specifies whether */
  /*          the upper or lower triangular part of the matrix A is stored. */
  /*          = 'U':  Upper triangular */
  /*          = 'L':  Lower triangular */
  
  /*  TRANS   (input) CHARACTER*1 */
  /*          Used only if A is nonsymmetric; specifies the operation */
  /*          applied to the matrix A. */
  /*          = 'N':  B := A    * X */
  /*          = 'T':  B := A**T * X */
  /*          = 'C':  B := A**H * X */
  
  /*  M       (input) INTEGER */
  /*          The number of rows of the matrix A.  M >= 0. */
  
  /*  N       (input) INTEGER */
  /*          The number of columns of the matrix A.  N >= 0. */
  
  /*  KL      (input) INTEGER */
  /*          Used only if A is a band matrix; specifies the number of */
  /*          subdiagonals of A if A is a general band matrix or if A is */
  /*          symmetric or triangular and UPLO = 'L'; specifies the number */
  /*          of superdiagonals of A if A is symmetric or triangular and */
  /*          UPLO = 'U'.  0 <= KL <= M-1. */
  
  /*  KU      (input) INTEGER */
  /*          Used only if A is a general band matrix or if A is */
  /*          triangular. */
  
  /*          If PATH = xGB, specifies the number of superdiagonals of A, */
  /*          and 0 <= KU <= N-1. */
  
  /*          If PATH = xTR, xTP, or xTB, specifies whether or not the */
  /*          matrix has unit diagonal: */
  /*          = 1:  matrix has non-unit diagonal (default) */
  /*          = 2:  matrix has unit diagonal */
  
  /*  NRHS    (input) INTEGER */
  /*          The number of right hand side vectors in the system A*X = B. */
  
  /*  A       (input) COMPLEX array, dimension (LDA,N) */
  /*          The test matrix whose type is given by PATH. */
  
  /*  LDA     (input) INTEGER */
  /*          The leading dimension of the array A. */
  /*          If PATH = xGB, LDA >= KL+KU+1. */
  /*          If PATH = xPB, xSB, xHB, or xTB, LDA >= KL+1. */
  /*          Otherwise, LDA >= max(1,M). */
  
  /*  X       (input or output) COMPLEX  array, dimension (LDX,NRHS) */
  /*          On entry, if XTYPE = 'C' (for 'Computed'), then X contains */
  /*          the exact solution to the system of linear equations. */
  /*          On exit, if XTYPE = 'N' (for 'New'), then X is initialized */
  /*          with random values. */
  
  /*  LDX     (input) INTEGER */
  /*          The leading dimension of the array X.  If TRANS = 'N', */
  /*          LDX >= max(1,N); if TRANS = 'T', LDX >= max(1,M). */
  
  /*  B       (output) COMPLEX  array, dimension (LDB,NRHS) */
  /*          The right hand side vector(s) for the system of equations, */
  /*          computed from B = op(A) * X, where op(A) is determined by */
  /*          TRANS. */
  
  /*  LDB     (input) INTEGER */
  /*          The leading dimension of the array B.  If TRANS = 'N', */
  /*          LDB >= max(1,M); if TRANS = 'T', LDB >= max(1,N). */
  
  /*  ISEED   (input/output) INTEGER array, dimension (4) */
  /*          The seed vector for the random number generator (used in */
  /*          CLATMS).  Modified on exit. */
  
  /*  INFO    (output) INTEGER */
  /*          = 0:  successful exit */
  /*          < 0:  if INFO = -i, the i-th argument had an illegal value */
  
  /*  ===================================================================== */
  
  /*     .. Parameters .. */
  /*     .. */
  /*     .. Local Scalars .. */
  /*     .. */
  /*     .. External Functions .. */
  /*     .. */
  /*     .. External Subroutines .. */
  /*     .. */
  /*     .. Intrinsic Functions .. */
  /*     .. */
  /*     .. Executable Statements .. */
  
  /*     Test the input parameters. */
  
      /* Parameter adjustments */
      a_dim1 = *lda;
      a_offset = 1 + a_dim1;
      a -= a_offset;
      x_dim1 = *ldx;
      x_offset = 1 + x_dim1;
      x -= x_offset;
      b_dim1 = *ldb;
      b_offset = 1 + b_dim1;
      b -= b_offset;
      --iseed;
  
      /* Function Body */
      *info = 0;
      *(unsigned char *)c1 = *(unsigned char *)path;
      s_copy(c2, path + 1, (ftnlen)2, (ftnlen)2);
      tran = lsame_(trans, "T") || lsame_(trans, "C");
      notran = ! tran;
      gen = lsame_(path + 1, "G");
      qrs = lsame_(path + 1, "Q") || lsame_(path + 2, 
  	    "Q");
      sym = lsame_(path + 1, "P") || lsame_(path + 1, 
  	    "S") || lsame_(path + 1, "H");
      tri = lsame_(path + 1, "T");
      band = lsame_(path + 2, "B");
      if (! lsame_(c1, "Complex precision")) {
  	*info = -1;
      } else if (! (lsame_(xtype, "N") || lsame_(xtype, 
  	    "C"))) {
  	*info = -2;
      } else if ((sym || tri) && ! (lsame_(uplo, "U") || 
  	    lsame_(uplo, "L"))) {
  	*info = -3;
      } else if ((gen || qrs) && ! (tran || lsame_(trans, "N"))) {
  	*info = -4;
      } else if (*m < 0) {
  	*info = -5;
      } else if (*n < 0) {
  	*info = -6;
      } else if (band && *kl < 0) {
  	*info = -7;
      } else if (band && *ku < 0) {
  	*info = -8;
      } else if (*nrhs < 0) {
  	*info = -9;
      } else if (! band && *lda < max(1,*m) || band && (sym || tri) && *lda < *
  	    kl + 1 || band && gen && *lda < *kl + *ku + 1) {
  	*info = -11;
      } else if (notran && *ldx < max(1,*n) || tran && *ldx < max(1,*m)) {
  	*info = -13;
      } else if (notran && *ldb < max(1,*m) || tran && *ldb < max(1,*n)) {
  	*info = -15;
      }
      if (*info != 0) {
  	i__1 = -(*info);
  	xerbla_("CLARHS", &i__1);
  	return 0;
      }
  
  /*     Initialize X to NRHS random vectors unless XTYPE = 'C'. */
  
      if (tran) {
  	nx = *m;
  	mb = *n;
      } else {
  	nx = *n;
  	mb = *m;
      }
      if (! lsame_(xtype, "C")) {
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    clarnv_(&c__2, &iseed[1], n, &x[j * x_dim1 + 1]);
  /* L10: */
  	}
      }
  
  /*     Multiply X by op( A ) using an appropriate */
  /*     matrix multiply routine. */
  
      if (lsamen_(&c__2, c2, "GE") || lsamen_(&c__2, c2, 
  	    "QR") || lsamen_(&c__2, c2, "LQ") || lsamen_(&c__2, c2, "QL") || 
  	    lsamen_(&c__2, c2, "RQ")) {
  
  /*        General matrix */
  
  	cgemm_(trans, "N", &mb, nrhs, &nx, &c_b1, &a[a_offset], lda, &x[
  		x_offset], ldx, &c_b2, &b[b_offset], ldb);
  
      } else if (lsamen_(&c__2, c2, "PO") || lsamen_(&
  	    c__2, c2, "HE")) {
  
  /*        Hermitian matrix, 2-D storage */
  
  	chemm_("Left", uplo, n, nrhs, &c_b1, &a[a_offset], lda, &x[x_offset], 
  		ldx, &c_b2, &b[b_offset], ldb);
  
      } else if (lsamen_(&c__2, c2, "SY")) {
  
  /*        Symmetric matrix, 2-D storage */
  
  	csymm_("Left", uplo, n, nrhs, &c_b1, &a[a_offset], lda, &x[x_offset], 
  		ldx, &c_b2, &b[b_offset], ldb);
  
      } else if (lsamen_(&c__2, c2, "GB")) {
  
  /*        General matrix, band storage */
  
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    cgbmv_(trans, m, n, kl, ku, &c_b1, &a[a_offset], lda, &x[j * 
  		    x_dim1 + 1], &c__1, &c_b2, &b[j * b_dim1 + 1], &c__1);
  /* L20: */
  	}
  
      } else if (lsamen_(&c__2, c2, "PB") || lsamen_(&
  	    c__2, c2, "HB")) {
  
  /*        Hermitian matrix, band storage */
  
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    chbmv_(uplo, n, kl, &c_b1, &a[a_offset], lda, &x[j * x_dim1 + 1], 
  		    &c__1, &c_b2, &b[j * b_dim1 + 1], &c__1);
  /* L30: */
  	}
  
      } else if (lsamen_(&c__2, c2, "SB")) {
  
  /*        Symmetric matrix, band storage */
  
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    csbmv_(uplo, n, kl, &c_b1, &a[a_offset], lda, &x[j * x_dim1 + 1], 
  		    &c__1, &c_b2, &b[j * b_dim1 + 1], &c__1);
  /* L40: */
  	}
  
      } else if (lsamen_(&c__2, c2, "PP") || lsamen_(&
  	    c__2, c2, "HP")) {
  
  /*        Hermitian matrix, packed storage */
  
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    chpmv_(uplo, n, &c_b1, &a[a_offset], &x[j * x_dim1 + 1], &c__1, &
  		    c_b2, &b[j * b_dim1 + 1], &c__1);
  /* L50: */
  	}
  
      } else if (lsamen_(&c__2, c2, "SP")) {
  
  /*        Symmetric matrix, packed storage */
  
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    cspmv_(uplo, n, &c_b1, &a[a_offset], &x[j * x_dim1 + 1], &c__1, &
  		    c_b2, &b[j * b_dim1 + 1], &c__1);
  /* L60: */
  	}
  
      } else if (lsamen_(&c__2, c2, "TR")) {
  
  /*        Triangular matrix.  Note that for triangular matrices, */
  /*           KU = 1 => non-unit triangular */
  /*           KU = 2 => unit triangular */
  
  	clacpy_("Full", n, nrhs, &x[x_offset], ldx, &b[b_offset], ldb);
  	if (*ku == 2) {
  	    *(unsigned char *)diag = 'U';
  	} else {
  	    *(unsigned char *)diag = 'N';
  	}
  	ctrmm_("Left", uplo, trans, diag, n, nrhs, &c_b1, &a[a_offset], lda, &
  		b[b_offset], ldb);
  
      } else if (lsamen_(&c__2, c2, "TP")) {
  
  /*        Triangular matrix, packed storage */
  
  	clacpy_("Full", n, nrhs, &x[x_offset], ldx, &b[b_offset], ldb);
  	if (*ku == 2) {
  	    *(unsigned char *)diag = 'U';
  	} else {
  	    *(unsigned char *)diag = 'N';
  	}
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    ctpmv_(uplo, trans, diag, n, &a[a_offset], &b[j * b_dim1 + 1], &
  		    c__1);
  /* L70: */
  	}
  
      } else if (lsamen_(&c__2, c2, "TB")) {
  
  /*        Triangular matrix, banded storage */
  
  	clacpy_("Full", n, nrhs, &x[x_offset], ldx, &b[b_offset], ldb);
  	if (*ku == 2) {
  	    *(unsigned char *)diag = 'U';
  	} else {
  	    *(unsigned char *)diag = 'N';
  	}
  	i__1 = *nrhs;
  	for (j = 1; j <= i__1; ++j) {
  	    ctbmv_(uplo, trans, diag, n, kl, &a[a_offset], lda, &b[j * b_dim1 
  		    + 1], &c__1);
  /* L80: */
  	}
  
      } else {
  
  /*        If none of the above, set INFO = -1 and return */
  
  	*info = -1;
  	i__1 = -(*info);
  	xerbla_("CLARHS", &i__1);
      }
  
      return 0;
  
  /*     End of CLARHS */
  
  } /* clarhs_ */
  