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https://github.com/llvm-mirror/libcxx.git
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cd17b3b156
Reviewers: mclow.lists, hans Subscribers: bcraig, cfe-commits Differential Revision: http://reviews.llvm.org/D16406 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@258403 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.2 KiB
C++
57 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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// REQUIRES: locale.en_US.UTF-8
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// <ios>
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// class ios_base
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// void register_callback(event_callback fn, int index);
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#include <ios>
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#include <string>
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#include <locale>
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#include <cassert>
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#include "platform_support.h" // locale name macros
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class test
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: public std::ios
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{
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public:
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test()
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{
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init(0);
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}
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};
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int f1_called = 0;
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void f1(std::ios_base::event ev, std::ios_base& stream, int index)
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{
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if (ev == std::ios_base::imbue_event)
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{
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assert(stream.getloc().name() == LOCALE_en_US_UTF_8);
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assert(index == 4);
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++f1_called;
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}
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}
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int main()
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{
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test t;
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std::ios_base& b = t;
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b.register_callback(f1, 4);
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b.register_callback(f1, 4);
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b.register_callback(f1, 4);
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std::locale l = b.imbue(std::locale(LOCALE_en_US_UTF_8));
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assert(f1_called == 3);
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}
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