-/* Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc.
- *
+/* Copyright (C) 1995,1996,1998,1999,2000,2001, 2006, 2008, 2009, 2010,
+ * 2011, 2012, 2014 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 2.1 of the License, or (at your option) any later version.
+ * 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
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 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/unif.h"
+#include "libguile/arrays.h" /* Hit me with the ugly stick */
+#include "libguile/generalized-vectors.h"
+#include "libguile/strings.h"
+#include "libguile/srfi-13.h"
+#include "libguile/dynwind.h"
+#include "libguile/deprecation.h"
+
+#include "libguile/bdw-gc.h"
+
+
\f
+#define VECTOR_MAX_LENGTH (SCM_T_BITS_MAX >> 8)
+
+int
+scm_is_vector (SCM obj)
+{
+ if (SCM_I_IS_NONWEAK_VECTOR (obj))
+ return 1;
+ if (SCM_I_WVECTP (obj))
+ {
+ scm_c_issue_deprecation_warning
+ ("Expecting vector? to be true for weak vectors is deprecated. "
+ "Use weak-vector? instead.");
+ return 1;
+ }
+ if (SCM_I_ARRAYP (obj) && SCM_I_ARRAY_NDIM (obj) == 1)
+ {
+ SCM v = SCM_I_ARRAY_V (obj);
+ if (SCM_I_IS_VECTOR (v))
+ {
+ scm_c_issue_deprecation_warning
+ ("Expecting vector? to be true for rank-1 arrays is deprecated. "
+ "Use array?, array-rank, and array-type instead.");
+ return 1;
+ }
+ return 0;
+ }
+ return 0;
+}
+
+int
+scm_is_simple_vector (SCM obj)
+{
+ if (SCM_I_IS_NONWEAK_VECTOR (obj))
+ return 1;
+ if (SCM_I_WVECTP (obj))
+ {
+ scm_c_issue_deprecation_warning
+ ("Expecting scm_is_simple_vector to be true for weak vectors is "
+ "deprecated. Use scm_is_weak_vector instead.");
+ return 1;
+ }
+ return 0;
+}
+
+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_VECTORP (obj));
+ return scm_from_bool (scm_is_vector (obj));
}
#undef FUNC_NAME
SCM
scm_vector_length (SCM v)
{
- SCM_GASSERT1 (SCM_VECTORP(v),
- g_vector_length, v, SCM_ARG1, s_vector_length);
- return SCM_I_MAKINUM (SCM_VECTOR_LENGTH (v));
+ if (SCM_I_IS_VECTOR (v))
+ {
+ if (SCM_I_WVECTP (v))
+ scm_c_issue_deprecation_warning
+ ("Using vector-length on weak vectors is deprecated. "
+ "Use weak-vector-length from (ice-9 weak-vectors) instead.");
+ 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);
+ scm_c_issue_deprecation_warning
+ ("Using vector-length on arrays is deprecated. "
+ "Use array-length instead.");
+ return scm_from_size_t (dim->ubnd - dim->lbnd + 1);
+ }
+ else if (SCM_UNPACK (g_vector_length))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-length as a primitive-generic is deprecated.");
+ return scm_call_generic_1 (g_vector_length, v);
+ }
+ else
+ {
+ scm_wrong_type_arg_msg ("vector-length", 1, v, "vector");
+ return SCM_UNDEFINED; /* not reached */
+ }
+}
+
+size_t
+scm_c_vector_length (SCM v)
+{
+ if (SCM_I_IS_NONWEAK_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);
{
SCM res;
SCM *data;
- long i;
+ long i, len;
+ scm_t_array_handle handle;
- /* 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);
+ SCM_VALIDATE_LIST_COPYLEN (1, l, len);
- /*
- this code doesn't alloc. -- accessing RES is safe.
- */
- data = SCM_WRITABLE_VELTS (res);
- while (!SCM_NULL_OR_NIL_P (l))
+ 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++ = SCM_CAR (l);
+ data[i] = SCM_CAR (l);
l = SCM_CDR (l);
+ i += 1;
}
+ scm_array_handle_release (&handle);
+
return res;
}
#undef FUNC_NAME
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)];
+ 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_NONWEAK_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];
+
+ return elt;
+ }
+ else if (SCM_I_WVECTP (v))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-ref on weak vectors is deprecated. "
+ "Instead, use weak-vector-ref from (ice-9 weak-vectors).");
+ return scm_c_weak_vector_ref (v, k);
+ }
+ 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;
+
+ scm_c_issue_deprecation_warning
+ ("Using vector-ref on arrays is deprecated. "
+ "Use array-ref instead.");
+
+ 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 (SCM_UNPACK (elt) == 0 && (SCM_I_WVECTP (vv)))
+ {
+ scm_c_issue_deprecation_warning
+ ("Weak arrays are deprecated. Use weak vectors instead.");
+ /* 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 if (SCM_UNPACK (g_vector_ref))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-ref as a primitive-generic is deprecated.");
+ return scm_call_generic_2 (g_vector_ref, v, scm_from_size_t (k));
+ }
+ else
+ {
+ scm_wrong_type_arg_msg ("vector-ref", 1, v, "vector");
+ return SCM_UNDEFINED; /* not reached */
+ }
+}
+
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"
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_VECTOR_SET (v, (long) SCM_INUM(k), obj);
+ 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_NONWEAK_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;
+ }
+ else if (SCM_I_WVECTP (v))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-set! on weak vectors is deprecated. "
+ "Instead, use weak-vector-set! from (ice-9 weak-vectors).");
+ scm_c_weak_vector_set_x (v, k, 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))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-set! on arrays is deprecated. "
+ "Use array-set! instead, but note the change in argument order.");
+
+ 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. */
+ SCM *link = & SCM_I_VECTOR_WELTS (vv)[k];
+ SCM_I_REGISTER_DISAPPEARING_LINK ((void **) link, SCM2PTR (obj));
+ scm_c_issue_deprecation_warning
+ ("Weak arrays are deprecated. Use weak vectors instead.");
+ }
+ }
+ else
+ scm_wrong_type_arg_msg (NULL, 0, v, "non-uniform vector");
+ }
+ else if (SCM_UNPACK (g_vector_set_x))
+ {
+ scm_c_issue_deprecation_warning
+ ("Using vector-set! as a primitive-generic is deprecated.");
+ scm_call_3 (g_vector_set_x, v, scm_from_size_t (k), obj);
+ }
+ else
+ scm_wrong_type_arg_msg ("vector-set!", 1, v, "vector");
+}
SCM_DEFINE (scm_make_vector, "make-vector", 1, 1, 0,
(SCM k, SCM fill),
"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;
-
- 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);
+
+ return scm_c_make_vector (l, fill);
}
#undef FUNC_NAME
SCM
-scm_c_make_vector (unsigned long int k, SCM fill)
+scm_c_make_vector (size_t k, SCM fill)
#define FUNC_NAME s_scm_make_vector
{
- SCM v;
- scm_t_bits *base;
+ SCM *vector;
+
+ vector = (SCM *)
+ scm_gc_malloc ((k + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM),
+ "vector");
- if (k > 0)
+ if (k > 0)
{
+ SCM *base;
unsigned long int j;
- SCM_ASSERT_RANGE (1, scm_ulong2num (k), k <= SCM_VECTOR_MAX_LENGTH);
+ SCM_ASSERT_RANGE (1, scm_from_ulong (k), k <= VECTOR_MAX_LENGTH);
- base = scm_gc_malloc (k * sizeof (scm_t_bits), "vector");
+ base = vector + SCM_I_VECTOR_HEADER_SIZE;
for (j = 0; j != k; ++j)
- base[j] = SCM_UNPACK (fill);
+ base[j] = fill;
}
- else
- base = NULL;
- v = scm_cell (SCM_MAKE_VECTOR_TAG (k, scm_tc7_vector), (scm_t_bits) base);
- scm_remember_upto_here_1 (fill);
+ ((scm_t_bits *) vector)[0] = (k << 8) | scm_tc7_vector;
+ ((scm_t_bits *) vector)[1] = 0;
+
+ return PTR2SCM (vector);
+}
+#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 result, *dst;
+
+ src = scm_vector_elements (vec, &handle, &len, &inc);
+
+ result = scm_c_make_vector (len, SCM_UNDEFINED);
+ dst = SCM_I_VECTOR_WELTS (result);
+ for (i = 0; i < len; i++, src += inc)
+ dst[i] = *src;
+
+ scm_array_handle_release (&handle);
- return v;
+ return result;
}
#undef FUNC_NAME
+\f
+/* Weak vectors. */
+
+/* Allocate memory for the elements of a weak vector on behalf of the
+ caller. */
+static SCM
+make_weak_vector (scm_t_bits type, size_t c_size)
+{
+ SCM *vector;
+ size_t total_size;
+
+ total_size = (c_size + SCM_I_VECTOR_HEADER_SIZE) * sizeof (SCM);
+ vector = (SCM *) scm_gc_malloc_pointerless (total_size, "weak vector");
+
+ ((scm_t_bits *) vector)[0] = (c_size << 8) | scm_tc7_wvect;
+ ((scm_t_bits *) vector)[1] = type;
+
+ return PTR2SCM (vector);
+}
+
+/* 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);
+ wv = make_weak_vector (type, c_size);
+ base = SCM_I_WVECT_GC_WVELTS (wv);
+
+ for (j = 0; j != c_size; ++j)
+ base[j] = fill;
+
+ 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, *elt;
+ long c_size;
+
+ c_size = scm_ilength (lst);
+ SCM_ASSERT (c_size >= 0, lst, SCM_ARG2, "scm_i_make_weak_vector_from_list");
+
+ wv = make_weak_vector(type, (size_t) c_size);
+
+ for (elt = SCM_I_WVECT_GC_WVELTS (wv);
+ scm_is_pair (lst);
+ lst = SCM_CDR (lst), elt++)
+ {
+ *elt = SCM_CAR (lst);
+ }
+
+ 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"
#define FUNC_NAME s_scm_vector_to_list
{
SCM res = SCM_EOL;
- long i;
- SCM const *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);
+ 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
"returned by @code{vector-fill!} is unspecified.")
#define FUNC_NAME s_scm_vector_fill_x
{
- register long i;
- SCM_VALIDATE_VECTOR (1, v);
+ scm_t_array_handle handle;
+ SCM *data;
+ size_t i, len;
+ ssize_t inc;
- for(i = SCM_VECTOR_LENGTH (v) - 1; i >= 0; i--)
- SCM_VECTOR_SET(v, i, fill);
+ 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_vector_equal_p(SCM x, SCM y)
+scm_i_vector_equal_p (SCM x, SCM y)
{
long i;
- for(i = SCM_VECTOR_LENGTH (x) - 1; i >= 0; i--)
- if (scm_is_false (scm_equal_p (SCM_VELTS (x)[i], SCM_VELTS (y)[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;
}
"@var{start1} is greater than @var{start2}.")
#define FUNC_NAME s_scm_vector_move_left_x
{
- long i;
- long j;
- long e;
+ scm_t_array_handle handle1, handle2;
+ const SCM *elts1;
+ SCM *elts2;
+ size_t len1, len2;
+ ssize_t inc1, inc2;
+ size_t i, j, 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_VECTOR_SET (vec2, j, SCM_VELTS (vec1)[i]);
- i++;
- j++;
- }
+ 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);
+ SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2);
+ j = scm_to_unsigned_integer (start2, 0, len2);
+ SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i));
+ 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
"@var{start1} is less than @var{start2}.")
#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));
+ 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);
+ SCM_ASSERT_RANGE (SCM_ARG3, end1, (e-i) <= len2);
+ j = scm_to_unsigned_integer (start2, 0, len2);
+ SCM_ASSERT_RANGE (SCM_ARG5, start2, j <= len2 - (e - i));
+
+ j += (e - i);
+
+ i *= inc1;
+ e *= inc1;
+ j *= inc2;
while (i < e)
{
- j--;
- e--;
- SCM_VECTOR_SET (vec2, j, SCM_VELTS (vec1)[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);
+}
+
+/* the & ~2 allows catching scm_tc7_wvect as well. needs changing if you change
+ tags.h. */
+SCM_ARRAY_IMPLEMENTATION (scm_tc7_vector, 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"
}
HCoop / bpt / guile.git / blobdiff