doc: fix typo

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

diff --git a/isl_multi_templ.c b/isl_multi_templ.c
index 720649d..d73eb50 100644 (file)
--- a/isl_multi_templ.c
+++ b/isl_multi_templ.c
@@ -429,6 +429,7 @@ __isl_give MULTI(BASE) *FN(MULTI(BASE),gist_aligned)(
 {
        int i;
 
+       multi = FN(MULTI(BASE),cow)(multi);
        if (!multi || !context)
                goto error;
 
@@ -872,3 +873,39 @@ error:
        isl_val_free(v);
        return FN(MULTI(BASE),free)(multi);
 }
+
+/* Multiply the elements of "multi" by the corresponding element of "mv"
+ * and return the result.
+ */
+__isl_give MULTI(BASE) *FN(MULTI(BASE),scale_multi_val)(
+       __isl_take MULTI(BASE) *multi, __isl_take isl_multi_val *mv)
+{
+       int i;
+
+       if (!multi || !mv)
+               goto error;
+
+       if (!isl_space_tuple_match(multi->space, isl_dim_out,
+                                       mv->space, isl_dim_set))
+               isl_die(isl_multi_val_get_ctx(mv), isl_error_invalid,
+                       "spaces don't match", goto error);
+
+       multi = FN(MULTI(BASE),cow)(multi);
+       if (!multi)
+               return NULL;
+
+       for (i = 0; i < multi->n; ++i) {
+               isl_val *v;
+
+               v = isl_multi_val_get_val(mv, i);
+               multi->p[i] = FN(EL,scale_val)(multi->p[i], v);
+               if (!multi->p[i])
+                       goto error;
+       }
+
+       isl_multi_val_free(mv);
+       return multi;
+error:
+       isl_multi_val_free(mv);
+       return FN(MULTI(BASE),free)(multi);
+}