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Diffstat (limited to 'libguile/arrays.h')
-rw-r--r-- | libguile/arrays.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/libguile/arrays.h b/libguile/arrays.h new file mode 100644 index 000000000..7221fdb63 --- /dev/null +++ b/libguile/arrays.h @@ -0,0 +1,86 @@ +#ifndef SCM_ARRAY_H +#define SCM_ARRAY_H + +/* Copyright 1995-1997,1999-2001,2004,2006,2008-2010,2012,2018 + Free Software Foundation, Inc. + + This file is part of Guile. + + Guile 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. + + Guile 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 Guile. If not, see + <https://www.gnu.org/licenses/>. */ + + + +#include "libguile/gc.h" +#include "libguile/print.h" + + + +/* Multidimensional arrays. Woo hoo! + Also see .... + */ + + +/** Arrays */ + +SCM_API SCM scm_make_array (SCM fill, SCM bounds); +SCM_API SCM scm_make_typed_array (SCM type, SCM fill, SCM bounds); +SCM_API SCM scm_from_contiguous_typed_array (SCM type, SCM bounds, + const void *bytes, + size_t byte_len); + +SCM_API SCM scm_shared_array_root (SCM ra); +SCM_API SCM scm_shared_array_offset (SCM ra); +SCM_API SCM scm_shared_array_increments (SCM ra); + +SCM_API SCM scm_make_shared_array (SCM oldra, SCM mapfunc, SCM dims); +SCM_API SCM scm_transpose_array (SCM ra, SCM args); +SCM_API SCM scm_array_contents (SCM ra, SCM strict); +SCM_API SCM scm_array_slice (SCM ra, SCM indices); +SCM_API SCM scm_array_cell_ref (SCM ra, SCM indices); +SCM_API SCM scm_array_cell_set_x (SCM ra, SCM b, SCM indices); + +SCM_API SCM scm_list_to_array (SCM ndim, SCM lst); +SCM_API SCM scm_list_to_typed_array (SCM type, SCM ndim, SCM lst); + +SCM_API size_t scm_c_array_rank (SCM ra); +SCM_API SCM scm_array_rank (SCM ra); + +/* internal. */ + +/* see scm_from_contiguous_array for these three */ +#define SCM_I_ARRAY_FLAG_CONTIGUOUS (1 << 0) +#define SCM_SET_ARRAY_CONTIGUOUS_FLAG(x) \ + (SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) | (SCM_I_ARRAY_FLAG_CONTIGUOUS << 16))) +#define SCM_CLR_ARRAY_CONTIGUOUS_FLAG(x) \ + (SCM_SET_CELL_WORD_0 ((x), SCM_CELL_WORD_0 (x) & ~(SCM_I_ARRAY_FLAG_CONTIGUOUS << 16))) + +#define SCM_I_ARRAYP(a) SCM_TYP16_PREDICATE (scm_tc7_array, a) +#define SCM_I_ARRAY_NDIM(x) ((size_t) (SCM_CELL_WORD_0 (x)>>17)) +#define SCM_I_ARRAY_CONTP(x) (SCM_CELL_WORD_0 (x) & (SCM_I_ARRAY_FLAG_CONTIGUOUS << 16)) + +#define SCM_I_ARRAY_V(a) SCM_CELL_OBJECT_1 (a) +#define SCM_I_ARRAY_BASE(a) ((size_t) SCM_CELL_WORD_2 (a)) +#define SCM_I_ARRAY_DIMS(a) ((scm_t_array_dim *) SCM_CELL_OBJECT_LOC (a, 3)) + +#define SCM_I_ARRAY_SET_V(a, v) SCM_SET_CELL_OBJECT_1(a, v) +#define SCM_I_ARRAY_SET_BASE(a, base) SCM_SET_CELL_WORD_2(a, base) + +SCM_INTERNAL SCM scm_i_make_array (int ndim); +SCM_INTERNAL int scm_i_print_array (SCM array, SCM port, scm_print_state *pstate); +SCM_INTERNAL SCM scm_i_shap2ra (SCM args); + +SCM_INTERNAL void scm_init_arrays (void); + +#endif /* SCM_ARRAYS_H */ |