-/* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc.
- *
- * This program 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 2, or (at your option)
- * any later version.
- *
- * This program 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 this software; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307 USA
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice. */
-
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
-
-\f
-
-#include "libguile/_scm.h"
-#include "libguile/eq.h"
-#include "libguile/root.h"
-#include "libguile/strings.h"
-
-#include "libguile/validate.h"
-#include "libguile/vectors.h"
-#include "libguile/unif.h"
-\f
-
-#if (SCM_DEBUG_DEPRECATED == 0)
-
-/* The function scm_vector_set_length_x will disappear in the next release of
- * guile.
- */
-
-/*
- * This complicates things too much if allowed on any array.
- * C code can safely call it on arrays known to be used in a single
- * threaded manner.
- *
- * SCM_REGISTER_PROC(s_vector_set_length_x, "vector-set-length!", 2, 0, 0, scm_vector_set_length_x);
- */
-static char s_vector_set_length_x[] = "vector-set-length!";
-
-
-SCM
-scm_vector_set_length_x (SCM vect, SCM len)
-{
- long l;
- size_t siz;
- size_t sz;
- char *base;
-
- l = SCM_INUM (len);
- SCM_ASRTGO (SCM_NIMP (vect), badarg1);
-
-#ifdef HAVE_ARRAYS
- if (SCM_TYP7 (vect) == scm_tc7_bvect)
- {
- l = (l + SCM_LONG_BIT - 1) / SCM_LONG_BIT;
- }
- sz = scm_uniform_element_size (vect);
- if (sz != 0)
- base = SCM_UVECTOR_BASE (vect);
- else
-#endif
- switch (SCM_TYP7 (vect))
- {
- default:
- badarg1: scm_wta (vect, (char *) SCM_ARG1, s_vector_set_length_x);
- case scm_tc7_string:
- SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullstr), badarg1);
- sz = sizeof (char);
- base = SCM_STRING_CHARS (vect);
- l++;
- break;
- case scm_tc7_vector:
- case scm_tc7_wvect:
- SCM_ASRTGO (!SCM_EQ_P (vect, scm_nullvect), badarg1);
- sz = sizeof (SCM);
- base = (char *) SCM_VECTOR_BASE (vect);
- break;
- }
- SCM_ASSERT (SCM_INUMP (len), len, SCM_ARG2, s_vector_set_length_x);
- if (!l)
- l = 1L;
- siz = l * sz;
- if (siz != l * sz)
- scm_memory_error (s_vector_set_length_x);
- SCM_REDEFER_INTS;
- SCM_SETCHARS (vect,
- ((char *)
- scm_must_realloc (base,
- (size_t) SCM_LENGTH (vect) * sz,
- (size_t) siz,
- s_vector_set_length_x)));
- if (SCM_VECTORP (vect))
- {
- sz = SCM_LENGTH (vect);
- while (l > sz)
- SCM_VELTS (vect)[--l] = SCM_UNSPECIFIED;
- }
- else if (SCM_STRINGP (vect))
- SCM_STRING_CHARS (vect)[l - 1] = 0;
- SCM_SETLENGTH (vect, SCM_INUM (len), SCM_TYP7 (vect));
- SCM_REALLOW_INTS;
- return vect;
-}
-
-#endif /* (SCM_DEBUG_DEPRECATED == 0) */
-
-SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0,
- (SCM obj),
- "Return @code{#t} if @var{obj} is a vector, otherwise return\n"
- "@code{#f}.")
-#define FUNC_NAME s_scm_vector_p
-{
- if (SCM_IMP (obj))
- return SCM_BOOL_F;
- return SCM_BOOL (SCM_VECTORP (obj));
-}
-#undef FUNC_NAME
-
-SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length);
-/* Returns the number of elements in @var{vector} as an exact integer. */
-SCM
-scm_vector_length (SCM v)
-{
- SCM_GASSERT1 (SCM_VECTORP(v),
- g_vector_length, v, SCM_ARG1, s_vector_length);
- return SCM_MAKINUM (SCM_VECTOR_LENGTH (v));
-}
-
-SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector);
-/*
- "Return a newly created vector initialized to the elements of"
- "the list @var{list}.\n\n"
- "@lisp\n"
- "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n"
- "(list->vector '(dididit dah)) @result{} #(dididit dah)\n"
- "@end lisp")
-*/
-SCM_DEFINE (scm_vector, "vector", 0, 0, 1,
- (SCM l),
- "@deffnx primitive list->vector l\n"
- "Return a newly allocated vector whose elements contain the\n"
- "given arguments. Analogous to @code{list}.\n"
- "\n"
- "@lisp\n"
- "(vector 'a 'b 'c) @result{} #(a b c)\n"
- "@end lisp")
-#define FUNC_NAME s_scm_vector
-{
- SCM res;
- SCM *data;
- long i;
-
- /* Dirk:FIXME:: In case of multiple threads, the list might get corrupted
- while the vector is being created. */
- SCM_VALIDATE_LIST_COPYLEN (1, l, i);
- res = scm_c_make_vector (i, SCM_UNSPECIFIED);
- data = SCM_VELTS (res);
- while (!SCM_NULLP (l))
- {
- *data++ = SCM_CAR (l);
- l = SCM_CDR (l);
- }
-
- return res;
-}
-#undef FUNC_NAME
-
-SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref);
-
-/*
- "@var{k} must be a valid index of @var{vector}.\n"
- "@samp{Vector-ref} returns the contents of element @var{k} of\n"
- "@var{vector}.\n\n"
- "@lisp\n"
- "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n"
- "(vector-ref '#(1 1 2 3 5 8 13 21)\n"
- " (let ((i (round (* 2 (acos -1)))))\n"
- " (if (inexact? i)\n"
- " (inexact->exact i)\n"
- " i))) @result{} 13\n"
- "@end lisp"
-*/
-
-SCM
-scm_vector_ref (SCM v, SCM k)
-#define FUNC_NAME s_vector_ref
-{
- SCM_GASSERT2 (SCM_VECTORP (v),
- g_vector_ref, v, k, SCM_ARG1, s_vector_ref);
- SCM_GASSERT2 (SCM_INUMP (k),
- g_vector_ref, v, k, SCM_ARG2, s_vector_ref);
- SCM_ASSERT_RANGE (2, k, SCM_INUM (k) < SCM_VECTOR_LENGTH (v) && SCM_INUM (k) >= 0);
- return SCM_VELTS (v)[(long) SCM_INUM (k)];
-}
-#undef FUNC_NAME
-
-SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x);
-
-/* "@var{k} must be a valid index of @var{vector}.\n"
- "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n"
- "The value returned by @samp{vector-set!} is unspecified.\n"
- "@lisp\n"
- "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n"
- " (vector-set! vec 1 '("Sue" "Sue"))\n"
- " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n"
- "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n"
- "@end lisp"
-*/
-
-SCM
-scm_vector_set_x (SCM v, SCM k, SCM obj)
-#define FUNC_NAME s_vector_set_x
-{
- SCM_GASSERTn (SCM_VECTORP (v),
- g_vector_set_x, scm_list_3 (v, k, obj),
- SCM_ARG1, s_vector_set_x);
- SCM_GASSERTn (SCM_INUMP (k),
- g_vector_set_x, scm_list_3 (v, k, obj),
- SCM_ARG2, s_vector_set_x);
- SCM_ASSERT_RANGE (2, k, SCM_INUM (k) < SCM_VECTOR_LENGTH (v) && SCM_INUM (k) >= 0);
- SCM_VELTS(v)[(long) SCM_INUM(k)] = obj;
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0,
- (SCM k, SCM fill),
- "Return a newly allocated vector of @var{k} elements. If a\n"
- "second argument is given, then each element is initialized to\n"
- "@var{fill}. Otherwise the initial contents of each element is\n"
- "unspecified.")
-#define FUNC_NAME s_scm_make_vector
-{
- if (SCM_UNBNDP (fill))
- fill = SCM_UNSPECIFIED;
-
- if (SCM_INUMP (k))
- {
- SCM_ASSERT_RANGE (1, k, SCM_INUM (k) >= 0);
- return scm_c_make_vector (SCM_INUM (k), fill);
- }
- else if (SCM_BIGP (k))
- SCM_OUT_OF_RANGE (1, k);
- else
- SCM_WRONG_TYPE_ARG (1, k);
-}
-#undef FUNC_NAME
-
-
-SCM
-scm_c_make_vector (unsigned long int k, SCM fill)
-#define FUNC_NAME s_scm_make_vector
-{
- SCM v;
- scm_t_bits *base;
-
- if (k > 0)
- {
- unsigned long int j;
-
- SCM_ASSERT_RANGE (1, scm_ulong2num (k), k <= SCM_VECTOR_MAX_LENGTH);
-
- base = scm_must_malloc (k * sizeof (scm_t_bits), FUNC_NAME);
- for (j = 0; j != k; ++j)
- base[j] = SCM_UNPACK (fill);
- }
- else
- base = NULL;
-
- SCM_NEWCELL (v);
- SCM_SET_VECTOR_BASE (v, base);
- SCM_SET_VECTOR_LENGTH (v, k, scm_tc7_vector);
- scm_remember_upto_here_1 (fill);
-
- return v;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0,
- (SCM v),
- "Return a newly allocated list of the objects contained in the\n"
- "elements of @var{vector}.\n"
- "\n"
- "@lisp\n"
- "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n"
- "(list->vector '(dididit dah)) @result{} #(dididit dah)\n"
- "@end lisp")
-#define FUNC_NAME s_scm_vector_to_list
-{
- SCM res = SCM_EOL;
- long i;
- SCM *data;
- SCM_VALIDATE_VECTOR (1,v);
- data = SCM_VELTS(v);
- for(i = SCM_VECTOR_LENGTH(v)-1;i >= 0;i--) res = scm_cons(data[i], res);
- return res;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0,
- (SCM v, SCM fill),
- "Store @var{fill} in every element of @var{vector}. The value\n"
- "returned by @code{vector-fill!} is unspecified.")
-#define FUNC_NAME s_scm_vector_fill_x
-{
- register long i;
- register SCM *data;
- SCM_VALIDATE_VECTOR (1, v);
- data = SCM_VELTS (v);
- for(i = SCM_VECTOR_LENGTH (v) - 1; i >= 0; i--)
- data[i] = fill;
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM
-scm_vector_equal_p(SCM x, SCM y)
-{
- long i;
- for(i = SCM_VECTOR_LENGTH (x) - 1; i >= 0; i--)
- if (SCM_FALSEP (scm_equal_p (SCM_VELTS (x)[i], SCM_VELTS (y)[i])))
- return SCM_BOOL_F;
- return SCM_BOOL_T;
-}
-
-
-SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0,
- (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
- "Vector version of @code{substring-move-left!}.")
-#define FUNC_NAME s_scm_vector_move_left_x
-{
- long i;
- long j;
- long e;
-
- SCM_VALIDATE_VECTOR (1,vec1);
- SCM_VALIDATE_INUM_COPY (2,start1,i);
- SCM_VALIDATE_INUM_COPY (3,end1,e);
- SCM_VALIDATE_VECTOR (4,vec2);
- SCM_VALIDATE_INUM_COPY (5,start2,j);
- SCM_ASSERT_RANGE (2, start1, i <= SCM_VECTOR_LENGTH (vec1) && i >= 0);
- SCM_ASSERT_RANGE (5, start2, j <= SCM_VECTOR_LENGTH (vec2) && j >= 0);
- SCM_ASSERT_RANGE (3, end1, e <= SCM_VECTOR_LENGTH (vec1) && e >= 0);
- SCM_ASSERT_RANGE (5, start2, e-i+j <= SCM_VECTOR_LENGTH (vec2));
- while (i<e) SCM_VELTS (vec2)[j++] = SCM_VELTS (vec1)[i++];
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0,
- (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
- "Vector version of @code{substring-move-right!}.")
-#define FUNC_NAME s_scm_vector_move_right_x
-{
- long i;
- long j;
- long e;
-
- SCM_VALIDATE_VECTOR (1,vec1);
- SCM_VALIDATE_INUM_COPY (2,start1,i);
- SCM_VALIDATE_INUM_COPY (3,end1,e);
- SCM_VALIDATE_VECTOR (4,vec2);
- SCM_VALIDATE_INUM_COPY (5,start2,j);
- SCM_ASSERT_RANGE (2, start1, i <= SCM_VECTOR_LENGTH (vec1) && i >= 0);
- SCM_ASSERT_RANGE (5, start2, j <= SCM_VECTOR_LENGTH (vec2) && j >= 0);
- SCM_ASSERT_RANGE (3, end1, e <= SCM_VECTOR_LENGTH (vec1) && e >= 0);
- j = e - i + j;
- SCM_ASSERT_RANGE (5, start2, j <= SCM_VECTOR_LENGTH (vec2));
- while (i < e)
- SCM_VELTS (vec2)[--j] = SCM_VELTS (vec1)[--e];
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-
-void
-scm_init_vectors ()
-{
- scm_nullvect = scm_c_make_vector (0, SCM_UNDEFINED);
-
-#ifndef SCM_MAGIC_SNARFER
-#include "libguile/vectors.x"
-#endif
-}
-
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
+/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+
+\f
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "libguile/_scm.h"
+#include "libguile/eq.h"
+#include "libguile/root.h"
+#include "libguile/strings.h"
+#include "libguile/lang.h"
+
+#include "libguile/validate.h"
+#include "libguile/vectors.h"
+#include "libguile/generalized-vectors.h"
+#include "libguile/arrays.h"
+#include "libguile/bitvectors.h"
+#include "libguile/bytevectors.h"
+#include "libguile/array-map.h"
+#include "libguile/srfi-4.h"
+#include "libguile/strings.h"
+#include "libguile/srfi-13.h"
+#include "libguile/dynwind.h"
+#include "libguile/deprecation.h"
+
+#include "libguile/boehm-gc.h"
+
+
+\f
+
+#define VECTOR_MAX_LENGTH (SCM_T_BITS_MAX >> 8)
+
+int
+scm_is_vector (SCM obj)
+{
+ if (SCM_I_IS_VECTOR (obj))
+ return 1;
+ if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1)
+ {
+ SCM v = SCM_I_ARRAY_V (obj);
+ return SCM_I_IS_VECTOR (v);
+ }
+ return 0;
+}
+
+int
+scm_is_simple_vector (SCM obj)
+{
+ return SCM_I_IS_VECTOR (obj);
+}
+
+const SCM *
+scm_vector_elements (SCM vec, scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp)
+{
+ if (SCM_I_WVECTP (vec))
+ /* FIXME: We should check each (weak) element of the vector for NULL and
+ convert it to SCM_BOOL_F. */
+ abort ();
+
+ scm_generalized_vector_get_handle (vec, h);
+ if (lenp)
+ {
+ scm_t_array_dim *dim = scm_array_handle_dims (h);
+ *lenp = dim->ubnd - dim->lbnd + 1;
+ *incp = dim->inc;
+ }
+ return scm_array_handle_elements (h);
+}
+
+SCM *
+scm_vector_writable_elements (SCM vec, scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp)
+{
+ if (SCM_I_WVECTP (vec))
+ /* FIXME: We should check each (weak) element of the vector for NULL and
+ convert it to SCM_BOOL_F. */
+ abort ();
+
+ scm_generalized_vector_get_handle (vec, h);
+ if (lenp)
+ {
+ scm_t_array_dim *dim = scm_array_handle_dims (h);
+ *lenp = dim->ubnd - dim->lbnd + 1;
+ *incp = dim->inc;
+ }
+ return scm_array_handle_writable_elements (h);
+}
+
+SCM_DEFINE (scm_vector_p, "vector?", 1, 0, 0,
+ (SCM obj),
+ "Return @code{#t} if @var{obj} is a vector, otherwise return\n"
+ "@code{#f}.")
+#define FUNC_NAME s_scm_vector_p
+{
+ return scm_from_bool (scm_is_vector (obj));
+}
+#undef FUNC_NAME
+
+SCM_GPROC (s_vector_length, "vector-length", 1, 0, 0, scm_vector_length, g_vector_length);
+/* Returns the number of elements in @var{vector} as an exact integer. */
+SCM
+scm_vector_length (SCM v)
+{
+ if (SCM_I_IS_VECTOR (v))
+ return scm_from_size_t (SCM_I_VECTOR_LENGTH (v));
+ else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1)
+ {
+ scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v);
+ return scm_from_size_t (dim->ubnd - dim->lbnd + 1);
+ }
+ else
+ SCM_WTA_DISPATCH_1 (g_vector_length, v, 1, NULL);
+}
+
+size_t
+scm_c_vector_length (SCM v)
+{
+ if (SCM_I_IS_VECTOR (v))
+ return SCM_I_VECTOR_LENGTH (v);
+ else
+ return scm_to_size_t (scm_vector_length (v));
+}
+
+SCM_REGISTER_PROC (s_list_to_vector, "list->vector", 1, 0, 0, scm_vector);
+/*
+ "Return a newly created vector initialized to the elements of"
+ "the list @var{list}.\n\n"
+ "@lisp\n"
+ "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n"
+ "(list->vector '(dididit dah)) @result{} #(dididit dah)\n"
+ "@end lisp")
+*/
+SCM_DEFINE (scm_vector, "vector", 0, 0, 1,
+ (SCM l),
+ "@deffnx {Scheme Procedure} list->vector l\n"
+ "Return a newly allocated vector composed of the\n"
+ "given arguments. Analogous to @code{list}.\n"
+ "\n"
+ "@lisp\n"
+ "(vector 'a 'b 'c) @result{} #(a b c)\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_vector
+{
+ SCM res;
+ SCM *data;
+ long i, len;
+ scm_t_array_handle handle;
+
+ SCM_VALIDATE_LIST_COPYLEN (1, l, len);
+
+ res = scm_c_make_vector (len, SCM_UNSPECIFIED);
+ data = scm_vector_writable_elements (res, &handle, NULL, NULL);
+ i = 0;
+ while (scm_is_pair (l) && i < len)
+ {
+ data[i] = SCM_CAR (l);
+ l = SCM_CDR (l);
+ i += 1;
+ }
+
+ scm_array_handle_release (&handle);
+
+ return res;
+}
+#undef FUNC_NAME
+
+SCM_GPROC (s_vector_ref, "vector-ref", 2, 0, 0, scm_vector_ref, g_vector_ref);
+
+/*
+ "@var{k} must be a valid index of @var{vector}.\n"
+ "@samp{Vector-ref} returns the contents of element @var{k} of\n"
+ "@var{vector}.\n\n"
+ "@lisp\n"
+ "(vector-ref '#(1 1 2 3 5 8 13 21) 5) @result{} 8\n"
+ "(vector-ref '#(1 1 2 3 5 8 13 21)\n"
+ " (let ((i (round (* 2 (acos -1)))))\n"
+ " (if (inexact? i)\n"
+ " (inexact->exact i)\n"
+ " i))) @result{} 13\n"
+ "@end lisp"
+*/
+
+SCM
+scm_vector_ref (SCM v, SCM k)
+#define FUNC_NAME s_vector_ref
+{
+ return scm_c_vector_ref (v, scm_to_size_t (k));
+}
+#undef FUNC_NAME
+
+SCM
+scm_c_vector_ref (SCM v, size_t k)
+{
+ if (SCM_I_IS_VECTOR (v))
+ {
+ register SCM elt;
+
+ if (k >= SCM_I_VECTOR_LENGTH (v))
+ scm_out_of_range (NULL, scm_from_size_t (k));
+ elt = (SCM_I_VECTOR_ELTS(v))[k];
+
+ if ((elt == SCM_PACK (NULL)) && SCM_I_WVECTP (v))
+ /* ELT was a weak pointer and got nullified by the GC. */
+ return SCM_BOOL_F;
+
+ return elt;
+ }
+ else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1)
+ {
+ scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v);
+ SCM vv = SCM_I_ARRAY_V (v);
+ if (SCM_I_IS_VECTOR (vv))
+ {
+ register SCM elt;
+
+ if (k >= dim->ubnd - dim->lbnd + 1)
+ scm_out_of_range (NULL, scm_from_size_t (k));
+ k = SCM_I_ARRAY_BASE (v) + k*dim->inc;
+ elt = (SCM_I_VECTOR_ELTS (vv))[k];
+
+ if ((elt == SCM_PACK (NULL)) && (SCM_I_WVECTP (vv)))
+ /* ELT was a weak pointer and got nullified by the GC. */
+ return SCM_BOOL_F;
+
+ return elt;
+ }
+ scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector");
+ }
+ else
+ SCM_WTA_DISPATCH_2 (g_vector_ref, v, scm_from_size_t (k), 2, NULL);
+}
+
+SCM_GPROC (s_vector_set_x, "vector-set!", 3, 0, 0, scm_vector_set_x, g_vector_set_x);
+
+/* "@var{k} must be a valid index of @var{vector}.\n"
+ "@code{Vector-set!} stores @var{obj} in element @var{k} of @var{vector}.\n"
+ "The value returned by @samp{vector-set!} is unspecified.\n"
+ "@lisp\n"
+ "(let ((vec (vector 0 '(2 2 2 2) "Anna")))\n"
+ " (vector-set! vec 1 '("Sue" "Sue"))\n"
+ " vec) @result{} #(0 ("Sue" "Sue") "Anna")\n"
+ "(vector-set! '#(0 1 2) 1 "doe") @result{} @emph{error} ; constant vector\n"
+ "@end lisp"
+*/
+
+SCM
+scm_vector_set_x (SCM v, SCM k, SCM obj)
+#define FUNC_NAME s_vector_set_x
+{
+ scm_c_vector_set_x (v, scm_to_size_t (k), obj);
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+void
+scm_c_vector_set_x (SCM v, size_t k, SCM obj)
+{
+ if (SCM_I_IS_VECTOR (v))
+ {
+ if (k >= SCM_I_VECTOR_LENGTH (v))
+ scm_out_of_range (NULL, scm_from_size_t (k));
+ (SCM_I_VECTOR_WELTS(v))[k] = obj;
+ if (SCM_I_WVECTP (v))
+ {
+ /* Make it a weak pointer. */
+ GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (v))[k]);
+ SCM_I_REGISTER_DISAPPEARING_LINK (link, obj);
+ }
+ }
+ else if (SCM_I_ARRAYP (v) && SCM_I_ARRAY_NDIM (v) == 1)
+ {
+ scm_t_array_dim *dim = SCM_I_ARRAY_DIMS (v);
+ SCM vv = SCM_I_ARRAY_V (v);
+ if (SCM_I_IS_VECTOR (vv))
+ {
+ if (k >= dim->ubnd - dim->lbnd + 1)
+ scm_out_of_range (NULL, scm_from_size_t (k));
+ k = SCM_I_ARRAY_BASE (v) + k*dim->inc;
+ (SCM_I_VECTOR_WELTS (vv))[k] = obj;
+
+ if (SCM_I_WVECTP (vv))
+ {
+ /* Make it a weak pointer. */
+ GC_PTR link = (GC_PTR) & ((SCM_I_VECTOR_WELTS (vv))[k]);
+ SCM_I_REGISTER_DISAPPEARING_LINK (link, obj);
+ }
+ }
+ else
+ scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector");
+ }
+ else
+ {
+ if (SCM_UNPACK (g_vector_set_x))
+ scm_apply_generic (g_vector_set_x,
+ scm_list_3 (v, scm_from_size_t (k), obj));
+ else
+ scm_wrong_type_arg_msg (NULL, 0, v, "vector");
+ }
+}
+
+SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0,
+ (SCM k, SCM fill),
+ "Return a newly allocated vector of @var{k} elements. If a\n"
+ "second argument is given, then each position is initialized to\n"
+ "@var{fill}. Otherwise the initial contents of each position is\n"
+ "unspecified.")
+#define FUNC_NAME s_scm_make_vector
+{
+ size_t l = scm_to_unsigned_integer (k, 0, VECTOR_MAX_LENGTH);
+
+ if (SCM_UNBNDP (fill))
+ fill = SCM_UNSPECIFIED;
+
+ return scm_c_make_vector (l, fill);
+}
+#undef FUNC_NAME
+
+
+SCM
+scm_c_make_vector (size_t k, SCM fill)
+#define FUNC_NAME s_scm_make_vector
+{
+ SCM v;
+ SCM *base;
+
+ if (k > 0)
+ {
+ unsigned long int j;
+
+ SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH);
+
+ base = scm_gc_malloc (k * sizeof (SCM), "vector");
+ for (j = 0; j != k; ++j)
+ base[j] = fill;
+ }
+ else
+ base = NULL;
+
+ v = scm_immutable_cell ((k << 8) | scm_tc7_vector, (scm_t_bits) base);
+ scm_remember_upto_here_1 (fill);
+
+ return v;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_vector_copy, "vector-copy", 1, 0, 0,
+ (SCM vec),
+ "Return a copy of @var{vec}.")
+#define FUNC_NAME s_scm_vector_copy
+{
+ scm_t_array_handle handle;
+ size_t i, len;
+ ssize_t inc;
+ const SCM *src;
+ SCM *dst;
+
+ src = scm_vector_elements (vec, &handle, &len, &inc);
+ dst = scm_gc_malloc (len * sizeof (SCM), "vector");
+ for (i = 0; i < len; i++, src += inc)
+ dst[i] = *src;
+ scm_array_handle_release (&handle);
+
+ return scm_cell ((len << 8) | scm_tc7_vector, (scm_t_bits) dst);
+}
+#undef FUNC_NAME
+
+void
+scm_i_vector_free (SCM vec)
+{
+ scm_gc_free (SCM_I_VECTOR_WELTS (vec),
+ SCM_I_VECTOR_LENGTH (vec) * sizeof(SCM),
+ "vector");
+}
+
+\f
+/* Weak vectors. */
+
+
+/* Initialize RET as a weak vector of type TYPE of SIZE elements pointed to
+ by BASE. */
+#define MAKE_WEAK_VECTOR(_ret, _type, _size, _base) \
+ (_ret) = scm_double_cell ((_size << 8) | scm_tc7_wvect, \
+ (scm_t_bits) (_base), \
+ (_type), \
+ SCM_UNPACK (SCM_EOL));
+
+
+/* Allocate memory for the elements of a weak vector on behalf of the
+ caller. */
+static SCM *
+allocate_weak_vector (scm_t_bits type, size_t c_size)
+{
+ SCM *base;
+
+ if (c_size > 0)
+ /* The base itself should not be scanned for pointers otherwise those
+ pointers will always be reachable. */
+ base = scm_gc_malloc_pointerless (c_size * sizeof (SCM), "weak vector");
+ else
+ base = NULL;
+
+ return base;
+}
+
+/* Return a new weak vector. The allocated vector will be of the given weak
+ vector subtype. It will contain SIZE elements which are initialized with
+ the FILL object, or, if FILL is undefined, with an unspecified object. */
+SCM
+scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill)
+{
+ SCM wv, *base;
+ size_t c_size, j;
+
+ if (SCM_UNBNDP (fill))
+ fill = SCM_UNSPECIFIED;
+
+ c_size = scm_to_unsigned_integer (size, 0, VECTOR_MAX_LENGTH);
+ base = allocate_weak_vector (type, c_size);
+
+ for (j = 0; j != c_size; ++j)
+ base[j] = fill;
+
+ MAKE_WEAK_VECTOR (wv, type, c_size, base);
+
+ return wv;
+}
+
+/* Return a new weak vector with type TYPE and whose content are taken from
+ list LST. */
+SCM
+scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst)
+{
+ SCM wv, *base, *elt;
+ long c_size;
+
+ c_size = scm_ilength (lst);
+ SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list");
+
+ base = allocate_weak_vector (type, (size_t)c_size);
+ for (elt = base;
+ scm_is_pair (lst);
+ lst = SCM_CDR (lst), elt++)
+ {
+ *elt = SCM_CAR (lst);
+ }
+
+ MAKE_WEAK_VECTOR (wv, type, (size_t)c_size, base);
+
+ return wv;
+}
+
+
+\f
+SCM_DEFINE (scm_vector_to_list, "vector->list", 1, 0, 0,
+ (SCM v),
+ "Return a newly allocated list composed of the elements of @var{v}.\n"
+ "\n"
+ "@lisp\n"
+ "(vector->list '#(dah dah didah)) @result{} (dah dah didah)\n"
+ "(list->vector '(dididit dah)) @result{} #(dididit dah)\n"
+ "@end lisp")
+#define FUNC_NAME s_scm_vector_to_list
+{
+ SCM res = SCM_EOL;
+ const SCM *data;
+ scm_t_array_handle handle;
+ size_t i, count, len;
+ ssize_t inc;
+
+ data = scm_vector_elements (v, &handle, &len, &inc);
+ for (i = (len - 1) * inc, count = 0;
+ count < len;
+ i -= inc, count++)
+ res = scm_cons (data[i], res);
+
+ scm_array_handle_release (&handle);
+ return res;
+}
+#undef FUNC_NAME
+
+
+SCM_DEFINE (scm_vector_fill_x, "vector-fill!", 2, 0, 0,
+ (SCM v, SCM fill),
+ "Store @var{fill} in every position of @var{vector}. The value\n"
+ "returned by @code{vector-fill!} is unspecified.")
+#define FUNC_NAME s_scm_vector_fill_x
+{
+ scm_t_array_handle handle;
+ SCM *data;
+ size_t i, len;
+ ssize_t inc;
+
+ data = scm_vector_writable_elements (v, &handle, &len, &inc);
+ for (i = 0; i < len; i += inc)
+ data[i] = fill;
+ scm_array_handle_release (&handle);
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+
+SCM
+scm_i_vector_equal_p (SCM x, SCM y)
+{
+ long i;
+ for (i = SCM_I_VECTOR_LENGTH (x) - 1; i >= 0; i--)
+ if (scm_is_false (scm_equal_p (SCM_I_VECTOR_ELTS (x)[i],
+ SCM_I_VECTOR_ELTS (y)[i])))
+ return SCM_BOOL_F;
+ return SCM_BOOL_T;
+}
+
+
+SCM_DEFINE (scm_vector_move_left_x, "vector-move-left!", 5, 0, 0,
+ (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
+ "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n"
+ "to @var{vec2} starting at position @var{start2}. @var{start1} and\n"
+ "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n"
+ "@code{vector-move-left!} copies elements in leftmost order.\n"
+ "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n"
+ "same vector, @code{vector-move-left!} is usually appropriate when\n"
+ "@var{start1} is greater than @var{start2}.")
+#define FUNC_NAME s_scm_vector_move_left_x
+{
+ scm_t_array_handle handle1, handle2;
+ const SCM *elts1;
+ SCM *elts2;
+ size_t len1, len2;
+ ssize_t inc1, inc2;
+ size_t i, j, e;
+
+ elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1);
+ elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2);
+
+ i = scm_to_unsigned_integer (start1, 0, len1);
+ e = scm_to_unsigned_integer (end1, i, len1);
+ j = scm_to_unsigned_integer (start2, 0, len2 - (i-e));
+
+ i *= inc1;
+ e *= inc1;
+ j *= inc2;
+ for (; i < e; i += inc1, j += inc2)
+ elts2[j] = elts1[i];
+
+ scm_array_handle_release (&handle2);
+ scm_array_handle_release (&handle1);
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_vector_move_right_x, "vector-move-right!", 5, 0, 0,
+ (SCM vec1, SCM start1, SCM end1, SCM vec2, SCM start2),
+ "Copy elements from @var{vec1}, positions @var{start1} to @var{end1},\n"
+ "to @var{vec2} starting at position @var{start2}. @var{start1} and\n"
+ "@var{start2} are inclusive indices; @var{end1} is exclusive.\n\n"
+ "@code{vector-move-right!} copies elements in rightmost order.\n"
+ "Therefore, in the case where @var{vec1} and @var{vec2} refer to the\n"
+ "same vector, @code{vector-move-right!} is usually appropriate when\n"
+ "@var{start1} is less than @var{start2}.")
+#define FUNC_NAME s_scm_vector_move_right_x
+{
+ scm_t_array_handle handle1, handle2;
+ const SCM *elts1;
+ SCM *elts2;
+ size_t len1, len2;
+ ssize_t inc1, inc2;
+ size_t i, j, e;
+
+ elts1 = scm_vector_elements (vec1, &handle1, &len1, &inc1);
+ elts2 = scm_vector_writable_elements (vec2, &handle2, &len2, &inc2);
+
+ i = scm_to_unsigned_integer (start1, 0, len1);
+ e = scm_to_unsigned_integer (end1, i, len1);
+ j = scm_to_unsigned_integer (start2, 0, len2 - (i-e));
+
+ i *= inc1;
+ e *= inc1;
+ j *= inc2;
+ while (i < e)
+ {
+ e -= inc1;
+ j -= inc2;
+ elts2[j] = elts1[e];
+ }
+
+ scm_array_handle_release (&handle2);
+ scm_array_handle_release (&handle1);
+
+ return SCM_UNSPECIFIED;
+}
+#undef FUNC_NAME
+
+\f
+static SCM
+vector_handle_ref (scm_t_array_handle *h, size_t idx)
+{
+ if (idx > h->dims[0].ubnd)
+ scm_out_of_range ("vector-handle-ref", scm_from_size_t (idx));
+ return ((SCM*)h->elements)[idx];
+}
+
+static void
+vector_handle_set (scm_t_array_handle *h, size_t idx, SCM val)
+{
+ if (idx > h->dims[0].ubnd)
+ scm_out_of_range ("vector-handle-set!", scm_from_size_t (idx));
+ ((SCM*)h->writable_elements)[idx] = val;
+}
+
+static void
+vector_get_handle (SCM v, scm_t_array_handle *h)
+{
+ h->array = v;
+ h->ndims = 1;
+ h->dims = &h->dim0;
+ h->dim0.lbnd = 0;
+ h->dim0.ubnd = SCM_I_VECTOR_LENGTH (v) - 1;
+ h->dim0.inc = 1;
+ h->element_type = SCM_ARRAY_ELEMENT_TYPE_SCM;
+ h->elements = h->writable_elements = SCM_I_VECTOR_WELTS (v);
+}
+
+SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 0x7f & ~2,
+ vector_handle_ref, vector_handle_set,
+ vector_get_handle);
+SCM_ARRAY_IMPLEMENTATION (scm_tc7_wvect, 0x7f & ~2,
+ vector_handle_ref, vector_handle_set,
+ vector_get_handle);
+SCM_VECTOR_IMPLEMENTATION (SCM_ARRAY_ELEMENT_TYPE_SCM, scm_make_vector);
+
+
+void
+scm_init_vectors ()
+{
+ scm_nullvect = scm_c_make_vector (0, SCM_UNDEFINED);
+
+#include "libguile/vectors.x"
+}
+
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff