llvm-project/pstl/test/test_uninitialized_fill_destroy.cpp
Chandler Carruth 57b08b0944 Update more file headers across all of the LLVM projects in the monorepo
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351648
2019-01-19 10:56:40 +00:00

92 lines
3.2 KiB
C++

// -*- C++ -*-
//===-- test_uninitialized_fill_destroy.cpp -------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// Tests for the destroy, destroy_n, uninitialized_fill, uninitialized_fill_n algorithms
#include "pstl/execution"
#include "pstl/memory"
#include "pstl/algorithm"
#include "utils.h"
using namespace TestUtils;
struct test_uninitialized_fill_destroy
{
template <typename Policy, typename Iterator, typename T>
void
operator()(Policy&& exec, Iterator first, Iterator last, const T& in, std::size_t n, std::false_type)
{
using namespace std;
{
T::SetCount(0);
uninitialized_fill(exec, first, last, in);
size_t count = count_if(first, last, [&in](T& x) -> bool { return x == in; });
EXPECT_TRUE(n == count, "wrong work of uninitialized_fill");
destroy(exec, first, last);
EXPECT_TRUE(T::Count() == 0, "wrong work of destroy");
}
{
auto res = uninitialized_fill_n(exec, first, n, in);
EXPECT_TRUE(res == last, "wrong result of uninitialized_fill_n");
size_t count = count_if(first, last, [&in](T& x) -> bool { return x == in; });
EXPECT_TRUE(n == count, "wrong work of uninitialized_fill_n");
destroy_n(exec, first, n);
EXPECT_TRUE(T::Count() == 0, "wrong work of destroy_n");
}
}
template <typename Policy, typename Iterator, typename T>
void
operator()(Policy&& exec, Iterator first, Iterator last, const T& in, std::size_t n, std::true_type)
{
using namespace std;
{
destroy(exec, first, last);
uninitialized_fill(exec, first, last, in);
size_t count = count_if(first, last, [&in](T& x) -> bool { return x == in; });
EXPECT_EQ(n, count, "wrong work of uninitialized:_fill");
}
{
destroy_n(exec, first, n);
auto res = uninitialized_fill_n(exec, first, n, in);
size_t count = count_if(first, last, [&in](T& x) -> bool { return x == in; });
EXPECT_EQ(n, count, "wrong work of uninitialized_fill_n");
EXPECT_TRUE(res == last, "wrong result of uninitialized_fill_n");
}
}
};
template <typename T>
void
test_uninitialized_fill_destroy_by_type()
{
std::size_t N = 100000;
for (size_t n = 0; n <= N; n = n <= 16 ? n + 1 : size_t(3.1415 * n))
{
std::unique_ptr<T[]> p(new T[n]);
invoke_on_all_policies(test_uninitialized_fill_destroy(), p.get(), std::next(p.get(), n), T(), n,
std::is_trivial<T>());
}
}
int32_t
main()
{
// for trivial types
test_uninitialized_fill_destroy_by_type<int32_t>();
test_uninitialized_fill_destroy_by_type<float64_t>();
// for user-defined types
test_uninitialized_fill_destroy_by_type<Wrapper<std::string>>();
test_uninitialized_fill_destroy_by_type<Wrapper<int8_t*>>();
std::cout << done() << std::endl;
return 0;
}