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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
//
//===----------------------------------------------------------------------===//
// <locale>
// template <class Facet> bool has_facet(const locale& loc) throw();
#include <locale>
#include <cassert>
struct my_facet
: public std::locale::facet
{
static std::locale::id id;
};
std::locale::id my_facet::id;
int main(int, char**)
{
std::locale loc;
assert(std::has_facet<std::ctype<char> >(loc));
assert(!std::has_facet<my_facet>(loc));
std::locale loc2(loc, new my_facet);
assert(std::has_facet<my_facet>(loc2));
return 0;
}
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