add isl_mat_set_element_si

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

diff --git a/isl_mat.c b/isl_mat.c
index 90e981f..6dc9d19 100644 (file)
--- a/isl_mat.c
+++ b/isl_mat.c
@@ -248,6 +248,25 @@ error:
        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;