Revert "[ADT] Add zip_longest iterators"

This reverts commit r348301.

Compilation fails on buildbots with older versions of gcc and msvc.

llvm-svn: 348303

1 files changed, 0 insertions, 30 deletions

diff --git a/llvm/unittests/ADT/IteratorTest.cpp b/llvm/unittests/ADT/IteratorTest.cpp
index f15ba8eac83..de0a6710789 100644
--- a/llvm/unittests/ADT/IteratorTest.cpp
+++ b/llvm/unittests/ADT/IteratorTest.cpp
@@ -328,36 +328,6 @@ TEST(ZipIteratorTest, ZipFirstBasic) {
   EXPECT_EQ(iters, 4u);
 }
 
-TEST(ZipIteratorTest, ZipLongestBasic) {
-  using namespace std;
-  const vector<unsigned> pi{3, 1, 4, 1, 5, 9};
-  const vector<StringRef> e{"2", "7", "1", "8"};
-
-  {
-    // Check left range longer than right.
-    const vector<tuple<Optional<unsigned>, Optional<StringRef>>> expected{
-        {3, {"2"}}, {1, {"7"}}, {4, {"1"}}, {1, {"8"}}, {5, None}, {9, None}};
-    size_t iters = 0;
-    for (auto tup : zip_longest(pi, e)) {
-      EXPECT_EQ(tup, expected[iters]);
-      iters += 1;
-    }
-    EXPECT_EQ(iters, expected.size());
-  }
-
-  {
-    // Check right range longer than left.
-    const vector<tuple<Optional<StringRef>, Optional<unsigned>>> expected{
-        {{"2"}, 3}, {{"7"}, 1}, {{"1"}, 4}, {{"8"}, 1}, {None, 5}, {None, 9}};
-    size_t iters = 0;
-    for (auto tup : zip_longest(e, pi)) {
-      EXPECT_EQ(tup, expected[iters]);
-      iters += 1;
-    }
-    EXPECT_EQ(iters, expected.size());
-  }
-}
-
 TEST(ZipIteratorTest, Mutability) {
   using namespace std;
   const SmallVector<unsigned, 4> pi{3, 1, 4, 1, 5, 9};