f5256e16df
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103516 91177308-0d34-0410-b5e6-96231b3b80d8
100 lines
2.5 KiB
C++
100 lines
2.5 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 distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <ios>
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// template <class charT, class traits> class basic_ios
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// locale imbue(const locale& loc);
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#include <ios>
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#include <streambuf>
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#include <cassert>
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struct testbuf
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: public std::streambuf
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{
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};
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bool f1_called = false;
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bool f2_called = false;
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bool f3_called = false;
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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(!f1_called);
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assert( f2_called);
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assert( f3_called);
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assert(stream.getloc().name() == "en_US");
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assert(index == 4);
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f1_called = true;
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}
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}
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void f2(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(!f1_called);
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assert(!f2_called);
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assert( f3_called);
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assert(stream.getloc().name() == "en_US");
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assert(index == 5);
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f2_called = true;
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}
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}
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void f3(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(!f1_called);
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assert(!f2_called);
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assert(!f3_called);
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assert(stream.getloc().name() == "en_US");
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assert(index == 6);
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f3_called = true;
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}
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}
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int main()
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{
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{
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std::ios ios(0);
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ios.register_callback(f1, 4);
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ios.register_callback(f2, 5);
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ios.register_callback(f3, 6);
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std::locale l = ios.imbue(std::locale("en_US"));
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assert(l.name() == std::string("C"));
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assert(ios.getloc().name() == std::string("en_US"));
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assert(f1_called);
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assert(f2_called);
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assert(f3_called);
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}
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f1_called = false;
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f2_called = false;
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f3_called = false;
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{
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testbuf sb;
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std::ios ios(&sb);
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ios.register_callback(f1, 4);
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ios.register_callback(f2, 5);
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ios.register_callback(f3, 6);
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std::locale l = ios.imbue(std::locale("en_US"));
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assert(l.name() == std::string("C"));
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assert(ios.getloc().name() == std::string("en_US"));
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assert(sb.getloc().name() == std::string("en_US"));
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assert(f1_called);
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assert(f2_called);
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assert(f3_called);
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}
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}
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