add isl_aff_mod_val

[platform/upstream/isl.git] / isl_mat.c

diff --git a/isl_mat.c b/isl_mat.c
index 6b54849..129cdc7 100644 (file)
--- a/isl_mat.c
+++ b/isl_mat.c
@@ -13,6 +13,7 @@
 #include <isl/seq.h>
 #include <isl_mat_private.h>
 #include <isl_space_private.h>
+#include <isl_val_private.h>
 
 isl_ctx *isl_mat_get_ctx(__isl_keep isl_mat *mat)
 {
@@ -245,6 +246,25 @@ int isl_mat_get_element(__isl_keep isl_mat *mat, int row, int col, isl_int *v)
        return 0;
 }
 
+/* Extract the element at row "row", oolumn "col" of "mat".
+ */
+__isl_give isl_val *isl_mat_get_element_val(__isl_keep isl_mat *mat,
+       int row, int col)
+{
+       isl_ctx *ctx;
+
+       if (!mat)
+               return NULL;
+       ctx = isl_mat_get_ctx(mat);
+       if (row < 0 || row >= mat->n_row)
+               isl_die(ctx, isl_error_invalid, "row out of range",
+                       return NULL);
+       if (col < 0 || col >= mat->n_col)
+               isl_die(ctx, isl_error_invalid, "column out of range",
+                       return NULL);
+       return isl_val_int_from_isl_int(ctx, mat->row[row][col]);
+}
+
 __isl_give isl_mat *isl_mat_set_element(__isl_take isl_mat *mat,
        int row, int col, isl_int v)
 {
@@ -283,6 +303,24 @@ error:
        return NULL;
 }
 
+/* Replace the element at row "row", column "col" of "mat" by "v".
+ */
+__isl_give isl_mat *isl_mat_set_element_val(__isl_take isl_mat *mat,
+       int row, int col, __isl_take isl_val *v)
+{
+       if (!v)
+               return isl_mat_free(mat);
+       if (!isl_val_is_int(v))
+               isl_die(isl_val_get_ctx(v), isl_error_invalid,
+                       "expecting integer value", goto error);
+       mat = isl_mat_set_element(mat, row, col, v->n);
+       isl_val_free(v);
+       return mat;
+error:
+       isl_val_free(v);
+       return isl_mat_free(mat);
+}
+
 __isl_give isl_mat *isl_mat_diag(isl_ctx *ctx, unsigned n_row, isl_int d)
 {
        int i;