4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <locale>
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// template <class Facet> const Facet& use_facet(const locale& loc);
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#include <locale>
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#include <cassert>
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int facet_count = 0;
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struct my_facet
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: public std::locale::facet
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{
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static std::locale::id id;
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bool im_alive;
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my_facet() : im_alive(true) {++facet_count;}
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~my_facet() {im_alive = false; --facet_count;}
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};
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std::locale::id my_facet::id;
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int main()
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{
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try
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{
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const my_facet& f = std::use_facet<my_facet>(std::locale());
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assert(false);
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}
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catch (std::bad_cast&)
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{
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}
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const my_facet* fp = 0;
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{
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std::locale loc(std::locale(), new my_facet);
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const my_facet& f = std::use_facet<my_facet>(loc);
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assert(f.im_alive);
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fp = &f;
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assert(fp->im_alive);
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assert(facet_count == 1);
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}
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assert(facet_count == 0);
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}
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