isl_ast_build_get_stride: use isl_val

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

diff --git a/isl_val.c b/isl_val.c
index c61b4ad..dca3228 100644 (file)
--- a/isl_val.c
+++ b/isl_val.c
@@ -284,6 +284,21 @@ long isl_val_get_num_si(__isl_keep isl_val *v)
        return isl_int_get_si(v->n);
 }
 
+/* Extract the numerator of a rational value "v" as an isl_int.
+ *
+ * If "v" is not a rational value, then the result is undefined.
+ */
+int isl_val_get_num_isl_int(__isl_keep isl_val *v, isl_int *n)
+{
+       if (!v)
+               return -1;
+       if (!isl_val_is_rat(v))
+               isl_die(isl_val_get_ctx(v), isl_error_invalid,
+                       "expecting rational value", return -1);
+       isl_int_set(*n, v->n);
+       return 0;
+}
+
 /* Extract the denominator of a rational value "v" as an integer.
  *
  * If "v" is not a rational value, then the result is undefined.