This repository has been archived by the owner on Apr 23, 2020. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 358
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Implement deduction guides for vector
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@332901 91177308-0d34-0410-b5e6-96231b3b80d8
- Loading branch information
Showing
3 changed files
with
184 additions
and
7 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
40 changes: 40 additions & 0 deletions
40
test/std/containers/sequences/vector/vector.cons/deduct.fail.cpp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is dual licensed under the MIT and the University of Illinois Open | ||
| // Source Licenses. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
|
|
||
| // <vector> | ||
| // UNSUPPORTED: c++98, c++03, c++11, c++14 | ||
| // UNSUPPORTED: libcpp-no-deduction-guides | ||
|
|
||
|
|
||
| // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> | ||
| // vector(InputIterator, InputIterator, Allocator = Allocator()) | ||
| // -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>; | ||
| // | ||
|
|
||
|
|
||
| #include <deque> | ||
| #include <iterator> | ||
| #include <cassert> | ||
| #include <cstddef> | ||
|
|
||
|
|
||
| int main() | ||
| { | ||
| // Test the explicit deduction guides | ||
|
|
||
| // Test the implicit deduction guides | ||
| { | ||
| // vector (allocator &) | ||
| std::vector vec((std::allocator<int>())); // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'vector'}} | ||
| // Note: The extra parens are necessary, since otherwise clang decides it is a function declaration. | ||
| // Also, we can't use {} instead of parens, because that constructs a | ||
| // deque<allocator<int>, allocator<allocator<int>>> | ||
| } | ||
|
|
||
| } |
116 changes: 116 additions & 0 deletions
116
test/std/containers/sequences/vector/vector.cons/deduct.pass.cpp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is dual licensed under the MIT and the University of Illinois Open | ||
| // Source Licenses. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
|
|
||
| // <vector> | ||
| // UNSUPPORTED: c++98, c++03, c++11, c++14 | ||
| // UNSUPPORTED: libcpp-no-deduction-guides | ||
|
|
||
|
|
||
| // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>> | ||
| // deque(InputIterator, InputIterator, Allocator = Allocator()) | ||
| // -> deque<typename iterator_traits<InputIterator>::value_type, Allocator>; | ||
| // | ||
|
|
||
|
|
||
| #include <vector> | ||
| #include <iterator> | ||
| #include <cassert> | ||
| #include <cstddef> | ||
| #include <climits> // INT_MAX | ||
|
|
||
| #include "test_macros.h" | ||
| #include "test_iterators.h" | ||
| #include "test_allocator.h" | ||
|
|
||
| struct A {}; | ||
|
|
||
| int main() | ||
| { | ||
|
|
||
| // Test the explicit deduction guides | ||
| { | ||
| const int arr[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }; | ||
| std::vector vec(std::begin(arr), std::end(arr)); | ||
|
|
||
| static_assert(std::is_same_v<decltype(vec), std::vector<int>>, ""); | ||
| assert(std::equal(vec.begin(), vec.end(), std::begin(arr), std::end(arr))); | ||
| } | ||
|
|
||
| { | ||
| const long arr[] = {INT_MAX, 1L, 2L, 3L }; | ||
| std::vector vec(std::begin(arr), std::end(arr), std::allocator<long>()); | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, long>, ""); | ||
| assert(vec.size() == 4); | ||
| assert(vec[0] == INT_MAX); | ||
| assert(vec[1] == 1L); | ||
| assert(vec[2] == 2L); | ||
| } | ||
|
|
||
| // Test the implicit deduction guides | ||
|
|
||
| { | ||
| // We don't expect this one to work. | ||
| // std::vector vec(std::allocator<int>()); // vector (allocator &) | ||
| } | ||
|
|
||
| { | ||
| std::vector vec(1, A{}); // vector (size_type, T) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, A>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<A>>, ""); | ||
| assert(vec.size() == 1); | ||
| } | ||
|
|
||
| { | ||
| std::vector vec(1, A{}, test_allocator<A>()); // vector (size_type, T, allocator) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, A>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, test_allocator<A>>, ""); | ||
| assert(vec.size() == 1); | ||
| } | ||
|
|
||
| { | ||
| std::vector vec{1U, 2U, 3U, 4U, 5U}; // vector(initializer-list) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, unsigned>, ""); | ||
| assert(vec.size() == 5); | ||
| assert(vec[2] == 3U); | ||
| } | ||
|
|
||
| { | ||
| std::vector vec({1.0, 2.0, 3.0, 4.0}, test_allocator<double>()); // vector(initializer-list, allocator) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, double>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, test_allocator<double>>, ""); | ||
| assert(vec.size() == 4); | ||
| assert(vec[3] == 4.0); | ||
| } | ||
|
|
||
| { | ||
| std::vector<long double> source; | ||
| std::vector vec(source); // vector(vector &) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, long double>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<long double>>, ""); | ||
| assert(vec.size() == 0); | ||
| } | ||
|
|
||
|
|
||
| // A couple of vector<bool> tests, too! | ||
| { | ||
| std::vector vec(3, true); // vector(initializer-list) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, bool>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<bool>>, ""); | ||
| assert(vec.size() == 3); | ||
| assert(vec[0] && vec[1] && vec[2]); | ||
| } | ||
|
|
||
| { | ||
| std::vector<bool> source; | ||
| std::vector vec(source); // vector(vector &) | ||
| static_assert(std::is_same_v<decltype(vec)::value_type, bool>, ""); | ||
| static_assert(std::is_same_v<decltype(vec)::allocator_type, std::allocator<bool>>, ""); | ||
| assert(vec.size() == 0); | ||
| } | ||
| } |