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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
//
//===----------------------------------------------------------------------===//
// <vector>
// void reserve(size_type n);
#include <vector>
#include <cassert>
#include <stdexcept>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
#include "asan_testing.h"
TEST_CONSTEXPR_CXX20 bool tests() {
{
std::vector<int> v;
v.reserve(10);
assert(v.capacity() >= 10);
assert(is_contiguous_container_asan_correct(v));
}
{
std::vector<int> v(100);
assert(v.capacity() == 100);
v.reserve(50);
assert(v.size() == 100);
assert(v.capacity() == 100);
v.reserve(150);
assert(v.size() == 100);
assert(v.capacity() == 150);
assert(is_contiguous_container_asan_correct(v));
}
{
// Add 1 for implementations that dynamically allocate a container proxy.
std::vector<int, limited_allocator<int, 250 + 1> > v(100);
assert(v.capacity() == 100);
v.reserve(50);
assert(v.size() == 100);
assert(v.capacity() == 100);
v.reserve(150);
assert(v.size() == 100);
assert(v.capacity() == 150);
assert(is_contiguous_container_asan_correct(v));
}
#ifndef TEST_HAS_NO_EXCEPTIONS
if (!TEST_IS_CONSTANT_EVALUATED) {
std::vector<int> v;
size_t sz = v.max_size() + 1;
try {
v.reserve(sz);
assert(false);
} catch (const std::length_error&) {
assert(v.size() == 0);
assert(v.capacity() == 0);
}
}
if (!TEST_IS_CONSTANT_EVALUATED) {
std::vector<int> v(10, 42);
int* previous_data = v.data();
size_t previous_capacity = v.capacity();
size_t sz = v.max_size() + 1;
try {
v.reserve(sz);
assert(false);
} catch (std::length_error&) {
assert(v.size() == 10);
assert(v.capacity() == previous_capacity);
assert(v.data() == previous_data);
for (int i = 0; i < 10; ++i) {
assert(v[i] == 42);
}
}
}
#endif
#if TEST_STD_VER >= 11
{
std::vector<int, min_allocator<int>> v;
v.reserve(10);
assert(v.capacity() >= 10);
assert(is_contiguous_container_asan_correct(v));
}
{
std::vector<int, min_allocator<int>> v(100);
assert(v.capacity() == 100);
v.reserve(50);
assert(v.size() == 100);
assert(v.capacity() == 100);
v.reserve(150);
assert(v.size() == 100);
assert(v.capacity() == 150);
assert(is_contiguous_container_asan_correct(v));
}
#endif
#ifndef TEST_HAS_NO_EXCEPTIONS
if (!TEST_IS_CONSTANT_EVALUATED) {
std::vector<int, limited_allocator<int, 100> > v;
v.reserve(50);
assert(v.capacity() == 50);
assert(is_contiguous_container_asan_correct(v));
try {
v.reserve(101);
assert(false);
} catch (const std::length_error&) {
// no-op
}
assert(v.capacity() == 50);
assert(is_contiguous_container_asan_correct(v));
}
#endif
return true;
}
int main(int, char**)
{
tests();
#if TEST_STD_VER > 17
static_assert(tests());
#endif
return 0;
}
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