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libcxx/test/std/localization/locales/locale.global.templates/has_facet.pass.cpp

33 lines
811 B
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.
//
//===----------------------------------------------------------------------===//
// <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()
{
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));
}