;;; Compiled by f2cl version:
;;; ("f2cl1.l,v 1.215 2009/04/07 22:05:21 rtoy Exp $"
;;;  "f2cl2.l,v 1.37 2008/02/22 22:19:33 rtoy Exp $"
;;;  "f2cl3.l,v 1.6 2008/02/22 22:19:33 rtoy Exp $"
;;;  "f2cl4.l,v 1.7 2008/02/22 22:19:34 rtoy Exp $"
;;;  "f2cl5.l,v 1.200 2009/01/19 02:38:17 rtoy Exp $"
;;;  "f2cl6.l,v 1.48 2008/08/24 00:56:27 rtoy Exp $"
;;;  "macros.l,v 1.112 2009/01/08 12:57:19 rtoy Exp $")

;;; Using Lisp CMU Common Lisp 19f (19F)
;;; 
;;; Options: ((:prune-labels nil) (:auto-save t) (:relaxed-array-decls t)
;;;           (:coerce-assigns :as-needed) (:array-type ':array)
;;;           (:array-slicing t) (:declare-common nil)
;;;           (:float-format double-float))

(in-package :lapack)


(let* ((one 1.0))
  (declare (type (double-float 1.0 1.0) one) (ignorable one))
  (defun dgetrs (trans n nrhs a lda ipiv b ldb$ info)
    (declare (type (array f2cl-lib:integer4 (*)) ipiv)
             (type (array double-float (*)) b a)
             (type (f2cl-lib:integer4) info ldb$ lda nrhs n)
             (type (simple-array character (*)) trans))
    (f2cl-lib:with-multi-array-data
        ((trans character trans-%data% trans-%offset%)
         (a double-float a-%data% a-%offset%)
         (b double-float b-%data% b-%offset%)
         (ipiv f2cl-lib:integer4 ipiv-%data% ipiv-%offset%))
      (prog ((notran nil))
        (declare (type f2cl-lib:logical notran))
        (setf info 0)
        (setf notran (lsame trans "N"))
        (cond
          ((and (not notran) (not (lsame trans "T")) (not (lsame trans "C")))
           (setf info -1))
          ((< n 0)
           (setf info -2))
          ((< nrhs 0)
           (setf info -3))
          ((< lda (max (the f2cl-lib:integer4 1) (the f2cl-lib:integer4 n)))
           (setf info -5))
          ((< ldb$ (max (the f2cl-lib:integer4 1) (the f2cl-lib:integer4 n)))
           (setf info -8)))
        (cond
          ((/= info 0)
           (xerbla "DGETRS" (f2cl-lib:int-sub info))
           (go end_label)))
        (if (or (= n 0) (= nrhs 0)) (go end_label))
        (cond
          (notran
           (dlaswp nrhs b ldb$ 1 n ipiv 1)
           (dtrsm "Left" "Lower" "No transpose" "Unit" n nrhs one a lda b ldb$)
           (dtrsm "Left" "Upper" "No transpose" "Non-unit" n nrhs one a lda b
            ldb$))
          (t
           (dtrsm "Left" "Upper" "Transpose" "Non-unit" n nrhs one a lda b ldb$)
           (dtrsm "Left" "Lower" "Transpose" "Unit" n nrhs one a lda b ldb$)
           (dlaswp nrhs b ldb$ 1 n ipiv -1)))
        (go end_label)
       end_label
        (return (values nil nil nil nil nil nil nil nil info))))))

(in-package #-gcl #:cl-user #+gcl "CL-USER")
#+#.(cl:if (cl:find-package '#:f2cl) '(and) '(or))
(eval-when (:load-toplevel :compile-toplevel :execute)
  (setf (gethash 'fortran-to-lisp::dgetrs
                 fortran-to-lisp::*f2cl-function-info*)
          (fortran-to-lisp::make-f2cl-finfo
           :arg-types '((simple-array character (1))
                        (fortran-to-lisp::integer4) (fortran-to-lisp::integer4)
                        (array double-float (*)) (fortran-to-lisp::integer4)
                        (array fortran-to-lisp::integer4 (*))
                        (array double-float (*)) (fortran-to-lisp::integer4)
                        (fortran-to-lisp::integer4))
           :return-values '(nil nil nil nil nil nil nil nil
                            fortran-to-lisp::info)
           :calls '(fortran-to-lisp::dtrsm fortran-to-lisp::dlaswp
                    fortran-to-lisp::xerbla fortran-to-lisp::lsame))))

