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-rw-r--r--libcxx/test/std/containers/sequences/vector.bool/ctor_exceptions.pass.cpp141
1 files changed, 141 insertions, 0 deletions
diff --git a/libcxx/test/std/containers/sequences/vector.bool/ctor_exceptions.pass.cpp b/libcxx/test/std/containers/sequences/vector.bool/ctor_exceptions.pass.cpp
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+++ b/libcxx/test/std/containers/sequences/vector.bool/ctor_exceptions.pass.cpp
@@ -0,0 +1,141 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: no-exceptions
+
+// (bug report: https://llvm.org/PR58392)
+// Check that vector<bool> constructors don't leak memory when an operation inside the constructor throws an exception
+
+#include <type_traits>
+#include <vector>
+
+#include "count_new.h"
+#include "test_iterators.h"
+
+template <class T>
+struct Allocator {
+ using value_type = T;
+ using is_always_equal = std::false_type;
+
+ template <class U>
+ Allocator(const Allocator<U>&) {}
+
+ Allocator(bool should_throw = true) {
+ if (should_throw)
+ throw 0;
+ }
+
+ T* allocate(int n) { return std::allocator<T>().allocate(n); }
+ void deallocate(T* ptr, int n) { std::allocator<T>().deallocate(ptr, n); }
+
+ friend bool operator==(const Allocator&, const Allocator&) { return false; }
+};
+
+template <class IterCat>
+struct Iterator {
+ using iterator_category = IterCat;
+ using difference_type = std::ptrdiff_t;
+ using value_type = bool;
+ using reference = bool&;
+ using pointer = bool*;
+
+ int i_;
+ bool b_ = true;
+ Iterator(int i = 0) : i_(i) {}
+ bool& operator*() {
+ if (i_ == 1)
+ throw 1;
+ return b_;
+ }
+
+ friend bool operator==(const Iterator& lhs, const Iterator& rhs) { return lhs.i_ == rhs.i_; }
+
+ friend bool operator!=(const Iterator& lhs, const Iterator& rhs) { return lhs.i_ != rhs.i_; }
+
+ Iterator& operator++() {
+ ++i_;
+ return *this;
+ }
+
+ Iterator operator++(int) {
+ auto tmp = *this;
+ ++i_;
+ return tmp;
+ }
+};
+
+void check_new_delete_called() {
+ assert(globalMemCounter.new_called == globalMemCounter.delete_called);
+ assert(globalMemCounter.new_array_called == globalMemCounter.delete_array_called);
+ assert(globalMemCounter.aligned_new_called == globalMemCounter.aligned_delete_called);
+ assert(globalMemCounter.aligned_new_array_called == globalMemCounter.aligned_delete_array_called);
+}
+
+int main(int, char**) {
+ using AllocVec = std::vector<bool, Allocator<bool> >;
+
+#if TEST_STD_VER >= 14
+ try { // Throw in vector(size_type, const allocator_type&) from allocator
+ Allocator<bool> alloc(false);
+ AllocVec get_alloc(0, alloc);
+ } catch (int) {
+ }
+ check_new_delete_called();
+#endif // TEST_STD_VER >= 14
+
+ try { // Throw in vector(InputIterator, InputIterator) from input iterator
+ std::vector<bool> vec((Iterator<std::input_iterator_tag>()), Iterator<std::input_iterator_tag>(2));
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator) from forward iterator
+ std::vector<bool> vec((Iterator<std::forward_iterator_tag>()), Iterator<std::forward_iterator_tag>(2));
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator) from allocator
+ int a[] = {1, 2};
+ AllocVec vec(cpp17_input_iterator<int*>(a), cpp17_input_iterator<int*>(a + 2));
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator, const allocator_type&) from input iterator
+ std::allocator<bool> alloc;
+ std::vector<bool> vec(Iterator<std::input_iterator_tag>(), Iterator<std::input_iterator_tag>(2), alloc);
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator, const allocator_type&) from forward iterator
+ std::allocator<bool> alloc;
+ std::vector<bool> vec(Iterator<std::forward_iterator_tag>(), Iterator<std::forward_iterator_tag>(2), alloc);
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator, const allocator_type&) from allocator
+ bool a[] = {true, false};
+ Allocator<bool> alloc(false);
+ AllocVec vec(cpp17_input_iterator<bool*>(a), cpp17_input_iterator<bool*>(a + 2), alloc);
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ try { // Throw in vector(InputIterator, InputIterator, const allocator_type&) from allocator
+ bool a[] = {true, false};
+ Allocator<bool> alloc(false);
+ AllocVec vec(forward_iterator<bool*>(a), forward_iterator<bool*>(a + 2), alloc);
+ } catch (int) {
+ }
+ check_new_delete_called();
+
+ return 0;
+}