67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* Automatique. Distributed only by permission. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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/* Operations on arrays */
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#include "alloc.h"
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#include "fail.h"
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#include "memory.h"
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#include "misc.h"
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#include "mlvalues.h"
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value array_get(value array, value index) /* ML */
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{
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long idx = Long_val(index);
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if (idx < 0 || idx >= Wosize_val(array)) invalid_argument("Array.get");
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return Field(array, idx);
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}
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value array_set(value array, value index, value newval) /* ML */
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{
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long idx = Long_val(index);
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if (idx < 0 || idx >= Wosize_val(array)) invalid_argument("Array.set");
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Modify(&Field(array, idx), newval);
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return Val_unit;
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}
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value make_vect(value len, value init) /* ML */
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{
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value res;
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mlsize_t size, i;
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size = Long_val(len);
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if (size > Max_wosize) invalid_argument("Array.make");
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Begin_root(init);
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if (size == 0) {
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res = Atom(0);
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}
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else if (size < Max_young_wosize) {
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res = alloc(size, 0);
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for (i = 0; i < size; i++) Field(res, i) = init;
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}
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else if (Is_block(init) && Is_young(init)) {
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minor_collection();
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res = alloc_shr(size, 0);
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for (i = 0; i < size; i++) Field(res, i) = init;
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res = check_urgent_gc (res);
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}
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else {
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res = alloc_shr(size, 0);
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for (i = 0; i < size; i++) initialize(&Field(res, i), init);
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res = check_urgent_gc (res);
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}
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End_roots();
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return res;
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}
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