* Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
*/
+#include <isl_ctx_private.h>
#include <isl/dim.h>
#include <isl/seq.h>
#include <isl_mat_private.h>
{
int i;
isl_int *old;
+ isl_int **row;
if (!mat)
return NULL;
mat->block = isl_blk_extend(mat->ctx, mat->block, n_row * mat->max_col);
if (isl_blk_is_error(mat->block))
goto error;
- mat->row = isl_realloc_array(mat->ctx, mat->row, isl_int *, n_row);
- if (!mat->row)
+ row = isl_realloc_array(mat->ctx, mat->row, isl_int *, n_row);
+ if (!row)
goto error;
+ mat->row = row;
for (i = 0; i < mat->n_row; ++i)
mat->row[i] = mat->block.data + (mat->row[i] - old);
return NULL;
}
+__isl_give isl_mat *isl_mat_set_element_si(__isl_take isl_mat *mat,
+ int row, int col, int v)
+{
+ mat = isl_mat_cow(mat);
+ if (!mat)
+ return NULL;
+ if (row < 0 || row >= mat->n_row)
+ isl_die(mat->ctx, isl_error_invalid, "row out of range",
+ goto error);
+ if (col < 0 || col >= mat->n_col)
+ isl_die(mat->ctx, isl_error_invalid, "column out of range",
+ goto error);
+ isl_int_set_si(mat->row[row][col], v);
+ return mat;
+error:
+ isl_mat_free(mat);
+ return NULL;
+}
+
struct isl_mat *isl_mat_identity(struct isl_ctx *ctx, unsigned n_row)
{
int i;
isl_mat_free(*U);
*U = NULL;
}
+ isl_mat_free(M);
return NULL;
}
if (left->n_col == 0) {
for (i = 0; i < prod->n_row; ++i)
isl_seq_clr(prod->row[i], prod->n_col);
+ isl_mat_free(left);
+ isl_mat_free(right);
return prod;
}
for (i = 0; i < prod->n_row; ++i) {
isl_int_submul(mat->row[i][dst_col], f, mat->row[i][src_col]);
}
+void isl_mat_col_add(__isl_keep isl_mat *mat, int dst_col, int src_col)
+{
+ int i;
+
+ if (!mat)
+ return;
+
+ for (i = 0; i < mat->n_row; ++i)
+ isl_int_add(mat->row[i][dst_col],
+ mat->row[i][dst_col], mat->row[i][src_col]);
+}
+
void isl_mat_col_mul(struct isl_mat *mat, int dst_col, isl_int f, int src_col)
{
int i;