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/* Operations on arrays */
#include "alloc.h"
#include "fail.h"
#include "memory.h"
#include "misc.h"
#include "mlvalues.h"
value make_vect(len, init)
value len, init;
{
value res;
mlsize_t size, wsize, i;
double d;
Push_roots(root, 1);
size = Long_val(len);
if (size == 0) {
res = Atom(0);
}
else if (Is_block(init) && Tag_val(init) == Double_tag) {
d = Double_val(init);
wsize = size * Double_wosize;
if (wsize > Max_wosize) {
Pop_roots();
invalid_argument("Array.new");
}
if (wsize < Max_young_wosize)
res = alloc(wsize, Double_array_tag);
else
res = alloc_shr(wsize, Double_array_tag);
for (i = 0; i < size; i++) {
Store_double_field(res, i, d);
}
} else {
if (size > Max_wosize) {
Pop_roots();
invalid_argument("Array.new");
}
if (size < Max_young_wosize) {
root[0] = init;
res = alloc(size, 0);
init = root[0];
for (i = 0; i < size; i++) Field(res, i) = init;
}
else if (Is_block(init) && Is_young(init)) {
root[0] = init;
minor_collection();
res = alloc_shr(size, 0);
init = root[0];
for (i = 0; i < size; i++) Field(res, i) = init;
}
else {
root[0] = init;
res = alloc_shr(size, 0);
init = root[0];
for (i = 0; i < size; i++) initialize(&Field(res, i), init);
}
}
Pop_roots();
return res;
}
value make_array(init)
value init;
{
mlsize_t wsize, size, i;
value res;
size = Wosize_val(init);
if (size == 0 || Tag_val(Field(init, 0)) != Double_tag) {
return init;
} else {
Push_roots(root, 1);
root[0] = init;
wsize = size * Double_wosize;
if (wsize > Max_wosize) {
Pop_roots();
invalid_argument("Array.new");
}
if (wsize < Max_young_wosize)
res = alloc(wsize, Double_array_tag);
else
res = alloc_shr(wsize, Double_array_tag);
init = root[0];
for (i = 0; i < size; i++) {
Store_double_field(res, i, Double_val(Field(init, i)));
}
return res;
}
}
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