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//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11
// <experimental/any>
// template <class Value> any(Value &&)
// Test construction from a value.
// Concerns:
// ---------
// 1. The value is properly move/copied depending on the value category.
// 2. Both small and large values are properly handled.
#include <experimental/any>
#include <cassert>
#include "any_helpers.h"
#include "count_new.hpp"
#include "test_macros.h"
using std::experimental::any;
using std::experimental::any_cast;
template <class Type>
void test_copy_value_throws()
{
#if !defined(TEST_HAS_NO_EXCEPTIONS)
assert(Type::count == 0);
{
Type const t(42);
assert(Type::count == 1);
try {
any const a2(t);
assert(false);
} catch (my_any_exception const &) {
// do nothing
} catch (...) {
assert(false);
}
assert(Type::count == 1);
assert(t.value == 42);
}
assert(Type::count == 0);
#endif
}
void test_move_value_throws()
{
#if !defined(TEST_HAS_NO_EXCEPTIONS)
assert(throws_on_move::count == 0);
{
throws_on_move v;
assert(throws_on_move::count == 1);
try {
any const a(std::move(v));
assert(false);
} catch (my_any_exception const &) {
// do nothing
} catch (...) {
assert(false);
}
assert(throws_on_move::count == 1);
}
assert(throws_on_move::count == 0);
#endif
}
template <class Type>
void test_copy_move_value() {
// constructing from a small type should perform no allocations.
DisableAllocationGuard g(isSmallType<Type>()); ((void)g);
assert(Type::count == 0);
Type::reset();
{
Type t(42);
assert(Type::count == 1);
any a(t);
assert(Type::count == 2);
assert(Type::copied == 1);
assert(Type::moved == 0);
assertContains<Type>(a, 42);
}
assert(Type::count == 0);
Type::reset();
{
Type t(42);
assert(Type::count == 1);
any a(std::move(t));
assert(Type::count == 2);
assert(Type::copied == 0);
assert(Type::moved == 1);
assertContains<Type>(a, 42);
}
}
int main() {
test_copy_move_value<small>();
test_copy_move_value<large>();
test_copy_value_throws<small_throws_on_copy>();
test_copy_value_throws<large_throws_on_copy>();
test_move_value_throws();
}
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