Fix use of operator comma in is_permutation and delete comma operator for test iterators.
The comma operators in the test iterators give better error messages when they
are deleted as opposed to not defined. Delete these functions when possible.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@220715 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/algorithm b/include/algorithm
index e003a59..02cbc81 100644
--- a/include/algorithm
+++ b/include/algorithm
@@ -1327,7 +1327,7 @@
forward_iterator_tag, forward_iterator_tag )
{
// shorten sequences as much as possible by lopping of any equal parts
- for (; __first1 != __last1 && __first2 != __last2; ++__first1, ++__first2)
+ for (; __first1 != __last1 && __first2 != __last2; ++__first1, (void) ++__first2)
if (!__pred(*__first1, *__first2))
goto __not_done;
return __first1 == __last1 && __first2 == __last2;