Changeset: 78588a6331f5 for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=78588a6331f5
Modified Files:
monetdb5/modules/mal/array.mx
Branch: SciQL-2
Log Message:
ARRAYslice(): use correct types:
With pci->argc & pci->retc being of type int, there is no point in having
variables valence, i, & j of type BUN; use type int instead.
Also added some assertions when (possibly) down-casting
from lng to BUN or from lng to oid.
diffs (68 lines):
diff --git a/monetdb5/modules/mal/array.mx b/monetdb5/modules/mal/array.mx
--- a/monetdb5/modules/mal/array.mx
+++ b/monetdb5/modules/mal/array.mx
@@ -351,8 +351,8 @@ ARRAYslice(Client cntxt, MalBlkPtr mb, M
int *ret = (int*) getArgReference(stk,pci,0);
lng *dim_strt = NULL, *dim_step = NULL, *dim_stop = NULL, *dim_size =
NULL, *dim_rept = NULL,
*slc_strt = NULL, *slc_step = NULL, *slc_stop = NULL, *slc_size
= NULL, *slc_rept = NULL, *slc_indx = NULL;
- BUN i = 0, j = 0;
- BUN rescnt = 1, valence = (pci->argc - pci->retc) / 6;
+ int i = 0, j = 0, valence = (pci->argc - pci->retc) / 6;
+ BUN k = 0, rescnt = 1;
BAT *res = NULL;
oid *resT = NULL;
@@ -396,24 +396,25 @@ ARRAYslice(Client cntxt, MalBlkPtr mb, M
slc_rept[i] = 1;
slc_indx[i] = 0;
- rescnt *= slc_size[i];
+ assert(slc_size[i] <= (lng) (BUN_MAX / rescnt));
+ rescnt *= (BUN) slc_size[i];
if ( (slc_step[i] > 0 && (slc_strt[i] < dim_strt[i] ||
slc_stop[i] > dim_stop[i])) ||
(slc_step[i] < 0 && (slc_strt[i] > dim_strt[i] ||
slc_stop[i] < dim_stop[i])) ) {
SLICE_CLEANUP();
- throw(MAL, "array.slice", "Slice range [%lld:%lld:%lld]
of the " BUNFMT "-th dimension out of bound ([%lld:%lld:%lld])",
+ throw(MAL, "array.slice", "Slice range [%lld:%lld:%lld]
of the %d-th dimension out of bound ([%lld:%lld:%lld])",
slc_strt[i], slc_step[i], slc_stop[i],
i, dim_strt[i], dim_step[i], dim_stop[i]);
}
if ((slc_strt[i] - dim_strt[i]) % dim_step[i] != 0) {
SLICE_CLEANUP();
- throw(MAL, "array.slice", "Invalid slice range of the "
BUNFMT "-th dimension: the slicing start value '%lld' is not a valid value of
this dimension",
+ throw(MAL, "array.slice", "Invalid slice range of the
%d-th dimension: the slicing start value '%lld' is not a valid value of this
dimension",
i, slc_strt[i]);
}
if ((slc_strt[i] - dim_strt[i]) % dim_step[i] != 0) {
SLICE_CLEANUP();
- throw(MAL, "array.slice", "Invalid slice range of the "
BUNFMT "-th dimension: the slicing step size '%lld' is not a multiple of the
step size '%lld' of this dimension",
+ throw(MAL, "array.slice", "Invalid slice range of the
%d-th dimension: the slicing step size '%lld' is not a multiple of the step
size '%lld' of this dimension",
i, slc_step[i], dim_step[i]);
}
}
@@ -435,17 +436,19 @@ ARRAYslice(Client cntxt, MalBlkPtr mb, M
resT = (oid *) Tloc(res, BUNfirst(res));
/* the main loop: compute the index of each cell selected by the
slicing */
- for (i = 0; i < rescnt; i++) {
- resT[i] = 0;
+ for (k = 0; k < rescnt; k++) {
+ resT[k] = 0;
/* compute the formula for each dimension, then sum them up to
get the index */
for (j = 0; j < valence; j++) {
- resT[i] += (slc_strt[j] + slc_indx[j] * slc_step[j] -
dim_strt[j]) / dim_step[j] * dim_rept[j];
+ lng inc = (slc_strt[j] + slc_indx[j] * slc_step[j] -
dim_strt[j]) / dim_step[j] * dim_rept[j];
+ assert(inc <= (lng) (GDK_oid_max - resT[k]));
+ resT[k] += (oid) inc;
/* only increase the index into the slicing elements if
the current
* element has been repeated slc_rept[j] times.
* reset the index into the slicing elements if all
elements have
* already been processed once.
*/
- slc_indx[j] = (((i + 1) % slc_rept[j]) == 0)?
((slc_indx[j] + 1) % slc_size[j]) : slc_indx[j];
+ slc_indx[j] = (((k + 1) % slc_rept[j]) == 0)?
((slc_indx[j] + 1) % slc_size[j]) : slc_indx[j];
}
}
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