121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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*
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* This file is part of GNU Mes.
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*
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* GNU Mes is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mes/lib.h"
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#include "mes/mes.h"
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SCM
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make_vector__ (long k)
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{
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SCM v = alloc (k);
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SCM x = make_cell (TVECTOR, k, v);
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long i;
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for (i = 0; i < k; i = i + 1)
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g_cells[v + i] = g_cells[vector_entry (cell_unspecified)];
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return x;
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}
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SCM
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make_vector_ (SCM n)
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{
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return make_vector__ (VALUE (n));
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}
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SCM
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vector_length (SCM x)
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{
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assert_msg (TYPE (x) == TVECTOR, "TYPE (x) == TVECTOR");
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return MAKE_NUMBER (LENGTH (x));
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}
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SCM
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vector_ref_ (SCM x, long i)
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{
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assert_msg (TYPE (x) == TVECTOR, "TYPE (x) == TVECTOR");
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assert_msg (i < LENGTH (x), "i < LENGTH (x)");
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SCM e = VECTOR (x) + i;
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if (TYPE (e) == TREF)
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e = REF (e);
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if (TYPE (e) == TCHAR)
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e = MAKE_CHAR (VALUE (e));
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if (TYPE (e) == TNUMBER)
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e = MAKE_NUMBER (VALUE (e));
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return e;
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}
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SCM
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vector_ref (SCM x, SCM i)
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{
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return vector_ref_ (x, VALUE (i));
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}
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SCM
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vector_entry (SCM x)
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{
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if (TYPE (x) != TCHAR && TYPE (x) != TNUMBER)
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x = MAKE_REF (x);
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return x;
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}
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SCM
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vector_set_x_ (SCM x, long i, SCM e)
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{
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assert_msg (TYPE (x) == TVECTOR, "TYPE (x) == TVECTOR");
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assert_msg (i < LENGTH (x), "i < LENGTH (x)");
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g_cells[VECTOR (x) + i] = g_cells[vector_entry (e)];
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return cell_unspecified;
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}
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SCM
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vector_set_x (SCM x, SCM i, SCM e)
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{
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return vector_set_x_ (x, VALUE (i), e);
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}
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SCM
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list_to_vector (SCM x)
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{
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SCM v = make_vector__ (length__ (x));
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SCM p = VECTOR (v);
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while (x != cell_nil)
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{
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g_cells[p] = g_cells[vector_entry (car (x))];
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p = p + 1;
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x = cdr (x);
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}
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return v;
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}
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SCM
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vector_to_list (SCM v)
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{
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SCM x = cell_nil;
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long i;
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for (i = LENGTH (v); i; i = i - 1)
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{
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SCM e = VECTOR (v) + i - 1;
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if (TYPE (e) == TREF)
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e = REF (e);
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x = cons (e, x);
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}
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return x;
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}
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