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libcxx/test/std/utilities/smartptr/unique.ptr/unique.ptr.class/unique.ptr.observers/explicit_bool.pass.cpp

67 lines
1.4 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// <memory>
// unique_ptr
// test op*()
#include <memory>
#include <cassert>
#include "test_macros.h"
#include "unique_ptr_test_helper.h"
template <class UPtr>
void doTest(UPtr& p, bool ExpectTrue) {
if (p)
assert(ExpectTrue);
else
assert(!ExpectTrue);
if (!p)
assert(!ExpectTrue);
else
assert(ExpectTrue);
}
template <bool IsArray>
void test_basic() {
typedef typename std::conditional<IsArray, int[], int>::type VT;
typedef std::unique_ptr<VT> U;
{
static_assert((std::is_constructible<bool, U>::value), "");
static_assert((std::is_constructible<bool, U const&>::value), "");
}
#if TEST_STD_VER >= 11
{
static_assert(!std::is_convertible<U, bool>::value, "");
static_assert(!std::is_convertible<U const&, bool>::value, "");
}
#endif
{
U p(newValue<VT>(1));
U const& cp = p;
doTest(p, true);
doTest(cp, true);
}
{
U p;
const U& cp = p;
doTest(p, false);
doTest(cp, false);
}
}
int main() {
test_basic</*IsArray*/ false>();
test_basic<true>();
}