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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: c++03, c++11, c++14, c++17, c++20
// <flat_map>
// Test CTAD on cases where deduction should fail.
#include <flat_map>
#include <functional>
#include <utility>
using P = std::pair<int, long>;
using PC = std::pair<const int, long>;
void test() {
{
// cannot deduce that the inner braced things should be std::pair and not something else
std::flat_map m{{1, 1L}, {2, 2L}, {3, 3L}};
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
{
// cannot deduce that the inner braced things should be std::pair and not something else
std::flat_map m({{1, 1L}, {2, 2L}, {3, 3L}}, std::less<int>());
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
{
// cannot deduce that the inner braced things should be std::pair and not something else
std::flat_map m({{1, 1L}, {2, 2L}, {3, 3L}}, std::less<int>(), std::allocator<PC>());
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
{
// cannot deduce that the inner braced things should be std::pair and not something else
std::flat_map m({{1, 1L}, {2, 2L}, {3, 3L}}, std::allocator<PC>());
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
{
// since we have parens, not braces, this deliberately does not find the initializer_list constructor
std::flat_map m(P{1, 1L});
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
{
// since we have parens, not braces, this deliberately does not find the initializer_list constructor
std::flat_map m(PC{1, 1L});
// expected-error-re@-1{{{{no viable constructor or deduction guide for deduction of template arguments of '.*flat_map'}}}}
}
}
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