add isl_vec_cmp_element

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

diff --git a/isl_vec.c b/isl_vec.c
index 3cf21c9..f6d5a87 100644 (file)
--- a/isl_vec.c
+++ b/isl_vec.c
@@ -254,6 +254,19 @@ error:
        return isl_vec_free(vec);
 }
 
+/* Compare the elements of "vec1" and "vec2" at position "pos".
+ */
+int isl_vec_cmp_element(__isl_keep isl_vec *vec1, __isl_keep isl_vec *vec2,
+       int pos)
+{
+       if (!vec1 || !vec2)
+               return 0;
+       if (pos < 0 || pos >= vec1->size || pos >= vec2->size)
+               isl_die(isl_vec_get_ctx(vec1), isl_error_invalid,
+                       "position out of range", return 0);
+       return isl_int_cmp(vec1->el[pos], vec2->el[pos]);
+}
+
 int isl_vec_is_equal(__isl_keep isl_vec *vec1, __isl_keep isl_vec *vec2)
 {
        if (!vec1 || !vec2)