-/* classes: h_files */
-
-#ifndef SCM_VECTORS_H
-#define SCM_VECTORS_H
-
-/* Copyright (C) 1995,1996,1998,2000,2001, 2002 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.
- *
- * 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
- */
-
-\f
-
-#include "libguile/__scm.h"
-
-\f
-
-#define SCM_VECTORP(x) (!SCM_IMP (x) && (SCM_TYP7S (x) == scm_tc7_vector))
-#define SCM_VECTOR_BASE(x) ((scm_t_bits *) SCM_CELL_WORD_1 (x))
-#define SCM_SET_VECTOR_BASE(v, b) (SCM_SET_CELL_WORD_1 ((v), (b)))
-#define SCM_VECTOR_MAX_LENGTH ((1L << 24) - 1)
-#define SCM_VECTOR_LENGTH(x) (((unsigned long) SCM_CELL_WORD_0 (x)) >> 8)
-#define SCM_MAKE_VECTOR_TAG(l, t) (((l) << 8) + (t))
-#define SCM_SET_VECTOR_LENGTH(v, l, t) (SCM_SET_CELL_WORD_0 ((v), SCM_MAKE_VECTOR_TAG(l, t)))
-
-#define SCM_VELTS(x) ((const SCM *) SCM_CELL_WORD_1 (x))
-#define SCM_VELTS_AS_STACKITEMS(x) ((SCM_STACKITEM *) SCM_CELL_WORD_1 (x))
-#define SCM_SETVELTS(x, v) (SCM_SET_CELL_WORD_1 ((x), (v)))
-#define SCM_VECTOR_REF(x, idx) (((const SCM *) SCM_CELL_WORD_1 (x))[(idx)])
-#define SCM_VECTOR_SET(x, idx, val) (((SCM*)SCM_CELL_WORD_1 (x))[(idx)] = (val))
-
-#define SCM_GC_WRITABLE_VELTS(x) ((SCM*) SCM_VELTS(x))
-
-/*
- no WB yet.
- */
-#define SCM_WRITABLE_VELTS(x) ((SCM*) SCM_VELTS(x))
-
-\f
-/*
- bit vectors
- */
-#define SCM_BITVEC_REF(a, i) ((SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] & (1L << ((i) % SCM_LONG_BIT))) ? 1 : 0)
-#define SCM_BITVEC_SET(a, i) SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] |= (1L << ((i) % SCM_LONG_BIT))
-#define SCM_BITVEC_CLR(a, i) SCM_BITVECTOR_BASE (a) [(i) / SCM_LONG_BIT] &= ~(1L << ((i) % SCM_LONG_BIT))
-
-
-\f
-
-SCM_API SCM scm_vector_p (SCM x);
-SCM_API SCM scm_vector_length (SCM v);
-SCM_API SCM scm_vector (SCM l);
-SCM_API SCM scm_vector_ref (SCM v, SCM k);
-SCM_API SCM scm_vector_set_x (SCM v, SCM k, SCM obj);
-SCM_API SCM scm_make_vector (SCM k, SCM fill);
-SCM_API SCM scm_vector_to_list (SCM v);
-SCM_API SCM scm_vector_fill_x (SCM v, SCM fill_x);
-SCM_API SCM scm_vector_equal_p (SCM x, SCM y);
-SCM_API SCM scm_vector_move_left_x (SCM vec1, SCM start1, SCM end1,
- SCM vec2, SCM start2);
-SCM_API SCM scm_vector_move_right_x (SCM vec1, SCM start1, SCM end1,
- SCM vec2, SCM start2);
-
-SCM_API int scm_is_vector (SCM obj);
-SCM_API SCM scm_c_make_vector (size_t len, SCM fill);
-SCM_API size_t scm_c_vector_length (SCM vec);
-SCM_API SCM scm_c_vector_ref (SCM vec, size_t k);
-SCM_API void scm_c_vector_set_x (SCM vec, size_t k, SCM obj);
-
-/* Generalized vectors */
-
-SCM_API SCM scm_generalized_vector_p (SCM v);
-SCM_API SCM scm_generalized_vector_length (SCM v);
-SCM_API SCM scm_generalized_vector_ref (SCM v, SCM idx);
-SCM_API SCM scm_generalized_vector_set_x (SCM v, SCM idx, SCM val);
-SCM_API SCM scm_generalized_vector_to_list (SCM v);
-
-SCM_API int scm_is_generalized_vector (SCM obj);
-SCM_API size_t scm_c_generalized_vector_length (SCM v);
-SCM_API SCM scm_c_generalized_vector_ref (SCM v, size_t idx);
-SCM_API void scm_c_generalized_vector_set_x (SCM v, size_t idx, SCM val);
-
-SCM_API void scm_init_vectors (void);
-
-#endif /* SCM_VECTORS_H */
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
+/* classes: h_files */
+
+#ifndef SCM_VECTORS_H
+#define SCM_VECTORS_H
+
+/* Copyright (C) 1995,1996,1998,2000,2001,2002,2004,2005, 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
+
+#include "libguile/__scm.h"
+#include "libguile/arrays.h"
+
+\f
+
+SCM_API SCM scm_vector_p (SCM x);
+SCM_API SCM scm_vector_length (SCM v);
+SCM_API SCM scm_vector (SCM l);
+SCM_API SCM scm_vector_ref (SCM v, SCM k);
+SCM_API SCM scm_vector_set_x (SCM v, SCM k, SCM obj);
+SCM_API SCM scm_make_vector (SCM k, SCM fill);
+SCM_API SCM scm_vector_to_list (SCM v);
+SCM_API SCM scm_vector_fill_x (SCM v, SCM fill_x);
+SCM_API SCM scm_vector_move_left_x (SCM vec1, SCM start1, SCM end1,
+ SCM vec2, SCM start2);
+SCM_API SCM scm_vector_move_right_x (SCM vec1, SCM start1, SCM end1,
+ SCM vec2, SCM start2);
+SCM_API SCM scm_vector_copy (SCM vec);
+
+SCM_API int scm_is_vector (SCM obj);
+SCM_API int scm_is_simple_vector (SCM obj);
+SCM_API SCM scm_c_make_vector (size_t len, SCM fill);
+SCM_API size_t scm_c_vector_length (SCM vec);
+SCM_API SCM scm_c_vector_ref (SCM vec, size_t k);
+SCM_API void scm_c_vector_set_x (SCM vec, size_t k, SCM obj);
+SCM_API const SCM *scm_vector_elements (SCM vec,
+ scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp);
+SCM_API SCM *scm_vector_writable_elements (SCM vec,
+ scm_t_array_handle *h,
+ size_t *lenp, ssize_t *incp);
+
+/* Fast, non-checking accessors for simple vectors.
+ */
+#define SCM_SIMPLE_VECTOR_LENGTH(x) SCM_I_VECTOR_LENGTH(x)
+#define SCM_SIMPLE_VECTOR_REF(x,idx) ((SCM_I_VECTOR_ELTS(x))[idx])
+#define SCM_SIMPLE_VECTOR_SET(x,idx,val) ((SCM_I_VECTOR_WELTS(x))[idx]=(val))
+
+\f
+/* Internals */
+
+/* Vectors have a 2-word header: 1 for the type tag, and 1 for the weak
+ vector extra data (see below.) */
+#define SCM_I_VECTOR_HEADER_SIZE 2U
+
+#define SCM_I_IS_VECTOR(x) (!SCM_IMP(x) && (SCM_TYP7S(x)==scm_tc7_vector))
+#define SCM_I_VECTOR_ELTS(x) ((const SCM *) SCM_I_VECTOR_WELTS (x))
+#define SCM_I_VECTOR_WELTS(x) (SCM_CELL_OBJECT_LOC (x, SCM_I_VECTOR_HEADER_SIZE))
+#define SCM_I_VECTOR_LENGTH(x) (((size_t) SCM_CELL_WORD_0 (x)) >> 8)
+
+SCM_INTERNAL SCM scm_i_vector_equal_p (SCM x, SCM y);
+
+/* Weak vectors share implementation details with ordinary vectors,
+ but no one else should. */
+
+#define SCM_I_WVECTP(x) (!SCM_IMP (x) && \
+ SCM_TYP7 (x) == scm_tc7_wvect)
+#define SCM_I_WVECT_LENGTH SCM_I_VECTOR_LENGTH
+#define SCM_I_WVECT_VELTS SCM_I_VECTOR_ELTS
+#define SCM_I_WVECT_GC_WVELTS SCM_I_VECTOR_WELTS
+#define SCM_I_WVECT_EXTRA(x) (SCM_CELL_WORD_1 (x))
+#define SCM_I_SET_WVECT_EXTRA(x, t) (SCM_SET_CELL_WORD_1 ((x),(t)))
+
+SCM_INTERNAL SCM scm_i_make_weak_vector (scm_t_bits type, SCM size, SCM fill);
+SCM_INTERNAL SCM scm_i_make_weak_vector_from_list (scm_t_bits type, SCM lst);
+
+SCM_INTERNAL void scm_init_vectors (void);
+
+#endif /* SCM_VECTORS_H */
+
+/*
+ Local Variables:
+ c-file-style: "gnu"
+ End:
+*/
HCoop / bpt / guile.git / blobdiff