mes/src/vector.c
Jan (janneke) Nieuwenhuizen 795225ec29
core: Prepare for M2-Planet 1.7.0.
* src/eval-apply.c (expand_variable_, apply_builtin): Declare variables
at toplevel.
* src/gc.c (gc_cellcpy, gc_loop, gc_dump_arena): Likewise.
* src/hash.c (hash_table_printer): Likewise.
* src/lib.c (equal2_p): Likewise.
* src/math.c (greater_p, less_p, is_p, minus, plus, divide, multiply,
logand, logior, logxor): Likewise.
* src/posix.c (current_input_port, execl_): Likewise.
* src/reader.c (reader_read_string): Likewise.
* src/stack.c (make_stack): Likewise.
* src/string.c (list_to_cstring, bytes_to_list, string_append):
Likewise.
* src/struct.c (make_struct): Likewise.
* src/vector.c (vector_to_list): Likewise.
2020-12-29 13:38:38 +01:00

140 lines
3.2 KiB
C

/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2016,2017,2018,2019,2020 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
* GNU Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* GNU Mes is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mes/lib.h"
#include "mes/mes.h"
#if __M2_PLANET__
#define M2_CELL_SIZE 12
// CONSTANT M2_CELL_SIZE 12
#else
#define M2_CELL_SIZE 1
// CONSTANT M2_CELL_SIZE 12
#endif
struct scm *
make_vector_ (long k, struct scm *e)
{
struct scm *x = alloc (1);
struct scm *v = alloc (k);
x->type = TVECTOR;
x->length = k;
x->vector = v;
long i;
for (i = 0; i < k; i = i + 1)
copy_cell (cell_ref (v, i), vector_entry (e));
return x;
}
struct scm *
make_vector (struct scm *x) /*:((arity . n)) */
{
struct scm *k = x->car;
assert_number ("make-vector", k);
long n = k->value;
struct scm *e = cell_unspecified;
if (x->cdr != cell_nil)
e = x->cdr->car;
return make_vector_ (n, e);
}
struct scm *
vector_length (struct scm *x)
{
assert_msg (x->type == TVECTOR, "x->type == TVECTOR");
return make_number (x->length);
}
struct scm *
vector_ref_ (struct scm *x, long i)
{
assert_msg (x->type == TVECTOR, "x->type == TVECTOR");
assert_msg (i < x->length, "i < x->length");
struct scm *e = cell_ref (x->vector, i);
if (e->type == TREF)
e = e->ref;
if (e->type == TCHAR)
e = make_char (e->value);
if (e->type == TNUMBER)
e = make_number (e->value);
return e;
}
struct scm *
vector_ref (struct scm *x, struct scm *i)
{
return vector_ref_ (x, i->value);
}
struct scm *
vector_entry (struct scm *x)
{
if (x->type != TCHAR && x->type != TNUMBER)
x = make_ref (x);
return x;
}
struct scm *
vector_set_x_ (struct scm *x, long i, struct scm *e)
{
assert_msg (x->type == TVECTOR, "x->type == TVECTOR");
assert_msg (i < x->length, "i < x->length");
copy_cell (cell_ref (x->vector, i), vector_entry (e));
return cell_unspecified;
}
struct scm *
vector_set_x (struct scm *x, struct scm *i, struct scm *e)
{
return vector_set_x_ (x, i->value, e);
}
struct scm *
list_to_vector (struct scm *x)
{
struct scm *v = make_vector_ (length__ (x), cell_unspecified);
struct scm *p = v->vector;
while (x != cell_nil)
{
copy_cell (p, vector_entry (car (x)));
p = p + M2_CELL_SIZE;
x = cdr (x);
}
return v;
}
struct scm *
vector_to_list (struct scm *v)
{
struct scm *x = cell_nil;
long i;
struct scm *e;
for (i = v->length; i; i = i - 1)
{
e = cell_ref (v->vector, i - 1);
if (e->type == TREF)
e = e->ref;
x = cons (e, x);
}
return x;
}