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-rw-r--r--libguile/arrays.c228
1 files changed, 0 insertions, 228 deletions
diff --git a/libguile/arrays.c b/libguile/arrays.c
index 292d80ef6..d360cda3c 100644
--- a/libguile/arrays.c
+++ b/libguile/arrays.c
@@ -28,7 +28,6 @@
#include <stdio.h>
#include <errno.h>
#include <string.h>
-#include <assert.h>
#include "verify.h"
@@ -568,233 +567,6 @@ SCM_DEFINE (scm_array_amend_x, "array-amend!", 2, 0, 1,
#undef ARRAY_FROM_GET_O
-// Copy array descriptor with different base.
-SCM
-scm_i_array_rebase (SCM a, size_t base)
-{
- size_t ndim = SCM_I_ARRAY_NDIM(a);
- SCM b = scm_words (((scm_t_bits) ndim << 17) + scm_tc7_array, 3 + ndim*3);
- SCM_I_ARRAY_SET_V (b, SCM_I_ARRAY_V (a));
-// FIXME do check base
- SCM_I_ARRAY_SET_BASE (b, base);
- memcpy(SCM_I_ARRAY_DIMS(b), SCM_I_ARRAY_DIMS(a), sizeof(scm_t_array_dim)*ndim);
- return b;
-}
-
-SCM_DEFINE (scm_array_for_each_cell, "array-for-each-cell", 2, 0, 1,
- (SCM frank_, SCM op, SCM a_),
- "Apply op to each of the rank (-frank) cells of the arguments,\n"
- "in unspecified order. The first frank dimensions of the\n"
- "arguments must match. Rank-0 cells are passed as such.\n\n"
- "The value returned is unspecified.\n\n"
- "For example:\n"
- "@lisp\n"
- "@end lisp")
-#define FUNC_NAME s_scm_array_for_each_cell
-{
- int const N = scm_ilength (a_);
- int const frank = scm_to_int (frank_);
-
- // wish C had better stack support
-
- size_t stack_size = 0;
- stack_size += N*sizeof (scm_t_array_handle);
- stack_size += N*sizeof (SCM);
- stack_size += N*sizeof (scm_t_array_dim *);
- stack_size += N*sizeof (int);
- stack_size += frank*sizeof (ssize_t);
-
- stack_size += N*sizeof (SCM);
- stack_size += N*sizeof (SCM *);
- stack_size += frank*sizeof (ssize_t);
- stack_size += frank*sizeof (int);
-
- stack_size += N*sizeof(size_t);
- char * stack = scm_gc_malloc_pointerless (stack_size, "stack");
-
-#define AFIC_ALLOC_ADVANCE(stack, count, type, name) \
- type * name = (void *)stack; \
- stack += count*sizeof(type);
-
- char * stack0 = stack;
- AFIC_ALLOC_ADVANCE (stack, N, scm_t_array_handle, ah);
- AFIC_ALLOC_ADVANCE (stack, N, SCM, a);
- AFIC_ALLOC_ADVANCE (stack, N, scm_t_array_dim *, as);
- AFIC_ALLOC_ADVANCE (stack, N, int, rank);
- AFIC_ALLOC_ADVANCE (stack, frank, ssize_t, s);
-
- AFIC_ALLOC_ADVANCE (stack, N, SCM, ai);
- AFIC_ALLOC_ADVANCE (stack, N, SCM *, dargs);
- AFIC_ALLOC_ADVANCE (stack, frank, ssize_t, i);
- AFIC_ALLOC_ADVANCE (stack, frank, int, order);
-
- AFIC_ALLOC_ADVANCE(stack, N, size_t, base);
- assert((stack0+stack_size==stack) && "internal error");
-#undef AFIC_ALLOC_ADVANCE
-
- for (int n=0; scm_is_pair(a_); a_=scm_cdr(a_), ++n)
- {
- a[n] = scm_car(a_);
- scm_array_get_handle(a[n], ah+n);
- as[n] = scm_array_handle_dims(ah+n);
- rank[n] = scm_array_handle_rank(ah+n);
- }
- // checks.
- char const * msg = NULL;
- if (frank<0)
- {
- msg = "bad frame rank";
- } else
- {
- for (int n=0; n!=N; ++n) {
- if (rank[n]<frank) {
- msg = "frame too large for arguments";
- goto check_msg;
- }
- for (int k=0; k!=frank; ++k) {
- if (as[n][k].lbnd!=0) {
- msg = "non-zero base index is not supported";
- goto check_msg;
- }
- if (as[0][k].ubnd!=as[n][k].ubnd) {
- msg = "mismatched frames";
- goto check_msg;
- }
- s[k] = as[n][k].ubnd + 1;
- }
- }
- }
- check_msg: ;
- if (msg!=NULL)
- {
- for (int n=0; n!=N; ++n) {
- scm_array_handle_release(ah+n);
- }
- scm_misc_error("array-for-each-cell", msg, scm_cons_star(frank_, a_));
- }
- // prepare moving cells.
- scm_t_array_dim * ais[N];
- for (int n=0; n!=N; ++n)
- {
- ai[n] = scm_i_make_array(rank[n]-frank);
- SCM_I_ARRAY_SET_V (ai[n], scm_shared_array_root(a[n]));
- // FIXME scm_array_handle_base (ah+n) should be in Guile
- SCM_I_ARRAY_SET_BASE (ai[n], ah[n].base);
- ais[n] = SCM_I_ARRAY_DIMS(ai[n]);
- for (int k=frank; k!=rank[n]; ++k) {
- ais[n][k-frank] = as[n][k];
- }
- }
- // prepare rest list for callee.
- SCM dargs_ = SCM_EOL;
- {
- SCM *p = &dargs_;
- for (int n=0; n<N; ++n) {
- *p = scm_cons (SCM_UNSPECIFIED, SCM_EOL);
- dargs[n] = SCM_CARLOC (*p);
- p = SCM_CDRLOC (*p);
- }
- }
- // special case for rank 0.
- if (frank==0)
- {
- for (int n=0; n<N; ++n)
- {
- *dargs[n] = ai[n];
- }
- scm_apply_0(op, dargs_);
- for (int n=0; n<N; ++n)
- {
- scm_array_handle_release(ah+n);
- }
- return SCM_UNSPECIFIED;
- }
- // FIXME determine best looping order.
- for (int k=0; k!=frank; ++k)
- {
- i[k] = 0;
- order[k] = frank-1-k;
- }
- // find outermost compact dim.
- ssize_t step = s[order[0]];
- int ocd = 1;
- for (; ocd<frank; step *= s[order[ocd]], ++ocd)
- {
- for (int n=0; n!=N; ++n) {
- if (step*as[n][order[0]].inc!=as[n][order[ocd]].inc) {
- goto ocd_reached;
- }
- }
- }
- ocd_reached: ;
- // rank loop.
- for (int n=0; n!=N; ++n)
- {
- base[n] = SCM_I_ARRAY_BASE(ai[n]);
- }
- for (;;)
- {
- for (ssize_t z=0; z!=step; ++z)
- {
- // we are forced to create fresh array descriptors for each
- // call since we don't know whether the callee will keep them,
- // and Guile offers no way to copy the descriptor (since
- // descriptors are immutable). Yet another reason why this
- // should be in Scheme.
- for (int n=0; n<N; ++n)
- {
- *dargs[n] = scm_i_array_rebase(ai[n], base[n]);
- base[n] += as[n][order[0]].inc;
- }
- scm_apply_0(op, dargs_);
- }
- for (int n=0; n<N; ++n)
- {
- base[n] -= step*as[n][order[0]].inc;
- }
- for (int k=ocd; ; ++k)
- {
- if (k==frank)
- {
- goto end;
- } else if (i[order[k]]<s[order[k]]-1)
- {
- ++i[order[k]];
- for (int n=0; n<N; ++n)
- {
- base[n] += as[n][order[k]].inc;
- }
- break;
- } else {
- i[order[k]] = 0;
- for (int n=0; n<N; ++n)
- {
- base[n] += as[n][order[k]].inc*(1-s[order[k]]);
- }
- }
- }
- }
- end:;
- for (int n=0; n<N; ++n)
- {
- scm_array_handle_release(ah+n);
- }
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-
-SCM_DEFINE (scm_array_for_each_cell_in_order, "array-for-each-cell-in-order", 2, 0, 1,
- (SCM frank_, SCM op, SCM a_),
- "Same as array-for-each-cell, but visit the cells sequentially\n"
- "and in row-major order.\n")
-#define FUNC_NAME s_scm_array_for_each_cell_in_order
-{
- return scm_array_for_each_cell (frank_, op, a_);
-}
-#undef FUNC_NAME
-
-
/* args are RA . DIMS */
SCM_DEFINE (scm_transpose_array, "transpose-array", 1, 0, 1,
(SCM ra, SCM args),