[PATCH] D48598: [ADT] drop_begin: use std namespace. NFC.
Michael Kruse via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Jun 26 10:40:36 PDT 2018
Meinersbur updated this revision to Diff 152920.
Meinersbur added a comment.
- Use adl_begin/adl_end
Repository:
rL LLVM
https://reviews.llvm.org/D48598
Files:
include/llvm/ADT/iterator_range.h
unittests/ADT/IteratorTest.cpp
Index: unittests/ADT/IteratorTest.cpp
===================================================================
--- unittests/ADT/IteratorTest.cpp
+++ unittests/ADT/IteratorTest.cpp
@@ -373,4 +373,17 @@
EXPECT_EQ(std::distance(v2.begin(), v2.end()), size(v2));
}
+TEST(IteratorRangeTest, DropBegin) {
+ SmallVector<int, 5> vec{0, 1, 2, 3, 4};
+
+ for (int n = 0; n < 5; ++n) {
+ int i = n;
+ for (auto &v : drop_begin(vec, n)) {
+ EXPECT_EQ(v, i);
+ i += 1;
+ }
+ EXPECT_EQ(i, 5);
+ }
+}
+
} // anonymous namespace
Index: include/llvm/ADT/iterator_range.h
===================================================================
--- include/llvm/ADT/iterator_range.h
+++ include/llvm/ADT/iterator_range.h
@@ -59,9 +59,10 @@
return iterator_range<T>(std::move(p.first), std::move(p.second));
}
-template<typename T>
-iterator_range<decltype(begin(std::declval<T>()))> drop_begin(T &&t, int n) {
- return make_range(std::next(begin(t), n), end(t));
+template <typename T>
+iterator_range<decltype(adl_begin(std::declval<T>()))> drop_begin(T &&t,
+ int n) {
+ return make_range(std::next(adl_begin(t), n), adl_end(t));
}
}
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