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//===----------------------------------------------------------------------===//
//
// 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 <cstddef>
#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(std::size_t n) { return std::allocator<T>().allocate(n); }
void deallocate(T* ptr, std::size_t n) { std::allocator<T>().deallocate(ptr, n); }
template <class U>
friend bool operator==(const Allocator&, const Allocator<U>&) { return true; }
};
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;
}
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